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Bacteriophage

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acillus is from the Latin bacillum, "a small staff or wand," this being the diminutive of baculum, "a rod or scepter." The allusion, of course, is to the rod-like shape of certain bacteria. When first introduced in microbiology, the term was restricted to straight "little rods," in distinction to vibrio, which are wavy forms. bacitracin is an antibiotic substance produced by the Tracy I strain of Bacillus subtilis, an aerobic, gram-positive, sporulating bacillus isolated in 1943 from the contaminated wound atthe site of a compound fracture sustained by a young girl named Margaret Tracy (Johnson BA, etal. Science. 1945; 102:376). bacteria is a neo-Latinized version (in the neuter plural; singular, bacterium) of the Greek bakterion, "a small rod or staff." In 1853 Ferdinand Cohn (1828-1898), a German botanist, categorized microorganisms as bacteria (short rods), bacilli (longer rods), and spirilla (spiral forms), Bacteriophage (see phage) bagassosis is a respiratory disorder due to inhalation, by susceptible persons, of the dust of bagasse (a French word), the husks ofsugar cane discarded after the sugar has been extracted. Acute asthmatic bronchitis, or even chronic pulmonary fibrosis, is a hypersensitivity reaction to a fungus (Thermoactinomycessaccharii) thatlurks in the husks. This is only one of an array ofsimilar occupational hazards, among which are farmer's lung, maple bark stripper’s lung, malt worker's lung, and paprika splitter's lung, to name but a few. Baker's cyst is a bulging of encapsulated synovial fluid in the popliteal space. The term memorializes William Morrant Baker (1839- 1896), a British surgeon. But here is a curious coincidence. In the 17th century "bakerlegged" was a term for an acquired deformity ofthe lower limbs said to be an occupational hazard of the baker's trade. BAL are the initials of "British anti-lewisite," developed during World War II as an antidote to "lewisite," a vesicant arsenical war gas concocted atthe time of World War I (1914- 18) by Winfred Lee Lewis (1878-1943), an American chemist. The antidote, more properly termed dimercaprol, evolved from intensive efforts by investigators at Oxford University and was shown to be a potent chelating agentthat rendered arsenicals nontoxic. This would be of little more than historical interest were it not for the postwar discovery that dimercaprol was also effective in counteracting the toxic effect of other heavy metals, notably mercury. balance is a term used for a laboratory scale and comes from the Latin bis, "twice," + lanx (plural lands), "plate," i.e., a two-plate device for comparing known and unknown weights. Scale is derived from the Old Norse skal, "a bowl," which referred to the container on which objects were lifted for weighing. balanitis is derived from the Greek balanos, "acorn.” The Greek word was early used to describe various things likened to an acorn, such as small pegs, suppositories, pessaries, and the glans penis. The last reference has persisted in balanitis, an inflammation ofthe glans penis. ballottement is a maneuver in physical diagnosis whereby a solid mass immersed in fluid, such as the liver in an ascitic abdomen, tends to bounce back when smartly tapped. The term is French, taken from the Greek ballein, "to throw," and is used in the sense of tossing an object back and forth. balm comes through the French baume as a contraction ofthe Latin balsamun, the name of a tree that yielded an aromatic resin that was made into a healing ointment. The Greek balsamon means "a fragrant gum." Anything that soothes or mitigates pain can be used to excess, and perhaps someone sniffed the resin for its mildly narcotic effect. Hence the word balmy when used to mean "silly or eccentric." Canada balsam is a resin obtained from the balsam fir and is used to mountsections on slides for microscopic examination. Embalm refers to the infusion of balsam by the ancient Egyptiansto preserve dead bodies. 29 bandage bedlam Though the Egyptians didn't know it, the active ingredient was benzoic acid, and sodium benzoate is used even now as a preservative. Morticians still embalm, but what they now infuse is formalin. bandage originated with the Indo-European bhendh, "to bind," and this led to the Old English banda. Through French this became bandage, meaning “that which binds." A bandage to the Greeks was desmos and to the Romans fascia. barber comes from the Latin barba, "beard." To the Romans, a barber orshearer was a tonsor. From this comes "tonsorial parlor," a highfalutin name for a barbershop. The original barbers also were authorized to use their knife blades for the purpose of therapeutic bleeding, and those so skilled were known as "barber surgeons." Their symbol was a white staff, such as grasped by the patient to mitigate the ordeal. Around this was draped the red, blood-stained bandage used to dress the wound. Atop the staff was a basin in which blood was collected. This arrangement became the familiar barber pole that still adorns many a barbershop (at least the ones not styled as "salons"). barbiturate refers to a derivative of barbituric acid. The name Barbitusaure was given in 1863 by Adolf von Baeyer (1835-1917), a German chemist. It has been said that Baeyer's synthesis of the substance, from a combination of malonic acid and urea, was aided by the contribution of urine specimens from a Munich waitress named Barbara. If this sounds fanciful, it probably is. Later, "Veronal" was a name given to the hypnotic barbital, presumably in honor of the Italian city of Verona. Did whoever bestowed the name remember that Verona was the setting for Shakespeare's Romeo and Juliet and the place where the hapless maiden quaffed her fatal sleeping potion? barbotage refers to the technique in spinal anesthesia wherein a small volume of cerebrospinal fluid is withdrawn by needle from the subarachnoid space, mixed with an anesthetic agent, then re-injected. Occasionally "barbotage" is used more generally to describe any aspiration and re-injection or flushing procedure, as in gastric lavage. The word is French and comes from barboter, "to dabble, as a duck in a pond." barf (see puke) baro- is a combining form derived from the Greek barns, "heavy." Barium ore was originally referred to as "heavy earth," and the element was discovered and named in 1808 by Sir Humphry Davy (1778-1829). The density or "heaviness” of barium is attested to by its widespread use, as barium sulfate, in contrast radiography of the gastrointestinal tract. A barometer (+ Greek metron, "measure") is an instrument that measures the "weight" or pressure of atmospheric air. Hyperbaric therapy entails use of a special chamber in which patients can be subjected to higher than normal atmospheric pressures or concentrations of oxygen, as used, for example, in the treatment of decompression sickness ("the bends") or carbon monoxide poisoning. The term bends is an allusion to the crouching posture assumed by those afflicted with the condition. Bariatrics (+ Greek iatros, "healing") is a branch of medicine that deals with the study of obesity, its causes and treatment. A baritone is typically cast as an operatic "heavy." base in chemistry refers to any substance that can be acted upon by acid to form a salt. More specifically, a base is a negatively charged ion whose donor electrons can bind covalently with a positively charged, acidic ion. The negatively charged ion, then, is the "base" on which the salt is built. The Greek basis is "a stepping," thus a foundation, beaker is a cylindrical glass container with an open top and pouring spout, a familiar piece of equipment in every laboratory. The name can be traced to the Greek bikos, "an earthen wine vessel or jug," which became in Vulgar Latin bicarium, "a wine cup," and led to the Old English biker, pronounced as "beaker." bedlam is a word describing a scene of confusion and uproar. It is a slurred contraction of Bethlehem, taken from the name of the Hospital ofSaint Mary of Bethlehem, formerly an asylum in southeast London forthe incarceration of persons then called lunatics. The hospital, popularly known as "Bedlam," was frequented by fashionable visitors in search of macabre entertainment. 30 belch bifurcate belch (see eructation) belladonna is an extract of the leaves and roots of the plant Atropa belladonna, sometimes called "deadly nightshade." The extract is capable of producing a potent anticholinergic effect, including dilatation of the pupils. Belladonna is Italian for "beautiful lady," and the story is that the drug was taken by ladies of high fashion to induce a limpid look that presumably was deemed attractive. Atropine (q.v.), the name given to a principal alkaloid of belladonna, also has a feminine connection in its derivation from Atropos, one ofthe trio of mythological Fates. belly (see abdomen) bends (see baro-) benign is from the Latin adjective benignus, meaning "kind, affable, friendly, or favorable." This, in turn, links the Latin bene, "well," + [gjnatus, "to be born." A benign person, then, is kind and gentle, presumably consequent to being “well born." A benign neoplasm came to be thought of as relatively harmless because it was assumed to be a counterpart of "well born" tissue. Of course, a benign tumor is not always of a favorable disposition, (see malignant) benzine (see benzoin) benzoin is a balsamic resin obtained from certain trees ofthe genus Styrax that grow in the East Indies. It is used as an expectorant and also as a tincture to make adhesive tape stick fast. Originally the Arabic term was luban jawi, “gum or frankincense of java." ("Frankincense," incidentally, is from a combination of the Old French franc, "superior," + encens, "incendiary,” as a readily ignitable resin.) Westerners, when introduced to the term luban jawi, dropped the lu, perhaps mistaking it for a mere grammatical article, and the name was further corrupted by the Venetians to benzoino. From benzoin was derived benzoic acid, the first of a long series of volatile chemical compounds. From benzoic acid, and later from coal tar, was distilled benzene (C6H6), a solvent of diverse uses. Benzene can be highly toxic, acutely to the central nervous system and chronically to bone marrow. Benzene is not to be confused with benzine, a petroleum distillate comprising various mixtures of hexane and heptane. Caveat: Benzene and benzine do not represent alternative spellings. beriberi is the Singhalese word for "weak," the duplication being commonly used in Eastern languages for intensification or emphasis. The affliction, now recognized as a polyneuropathy, was once endemic in the Far East, the result of a diet limited to polished rice. Beri beri might be considered a "disease of progress." It was relatively unknown until the invention of a steam-powered mill that yielded grains of rice bereft of the nutritious husk. Now we recognize the deficiency to be mainly that of vitamin B,. (see thiamine) bezoar is derived from the medieval Arabic badizhar, which, in turn, comes from the ancient Persian podzahr, the name given to the hairball extracted from the rectum of a wild Asiatic mountain goat and said to have been prized for its magical efficacy as a universal antidote. Indigestible agglomerations of hair that accumulate in the digestive tract, usually in demented persons who pluck and swallow their own hair, are known specifically as trichobezoars, the prefix being the Greek for "hair." Those concretions composed of indigestible plant fibers, such as those from persimmons, are phytobezoars, the prefix being the Greek for "plant." biceps is a Latin word meaning "two-headed" and is derived from bis-, "double," + caput, "head." Anatomically, the biceps is a muscle with two "heads" of origin. The biceps brachii is in the upper arm; the biceps femoris is in the thigh. "Biceps," despite its terminal "s,” is singular; there is no such thing as a "bicep." bicuspid refers to a tooth with two cusps or a valve with two leaves. The word comes from the Latin bis-, "double," + cuspis, "point of a spear." bifid is a near borrowing of the Latin bifidus, "forked, cloven, or split in two," which, in turn, was derived from bis-, "double," + findere, "to split." bifurcate is from the Latin adjective bifurcus, "double pronged," being derived from a combination of bis-, "double," + /urea, "fork." The term often is applied to vessels or nerves that divide in their courses. Incidentally, the fork as an eating tool is a relatively recent utensil 31 bigeminal -blastwhen compared with the spoon and knife. The Romans used furcae more often to support vines or as yokes applied to the necks ofslaves, bigeminal refers to a cardiac rhythm wherein heartbeats occur in series of two. The word comes from the Latin bis-, "double," + geminare, "to repeat." Also, in Latin a geminus is a twin and, in the plural, gemini are twins (see trigeminus). The Gemini are among the signs of the zodiac (from the Greek zodiakos, "of or pertaining to animals"). Formerly, it was common to swear by the Gemini, hence the old expletive "By jiminy!" (though it could also be a euphemism for Jesu Domini, "Lord Jesus"), bile comes from the Latin bilis, which means "gall or bile" and also "wrath or anger." To the Romans, bilis accounted for two ofthe four "humors” of the body: yellow bile, black bile, blood, and phlegm. Bilis is said to have been derived from a combination of bis-, "double,"

  • lis, "contention," the idea presumably being that there are two forms of bile that are responsible for two types of temperament. The reason for this may have been the observation ofthin, yellow bile excreted directly from the liver, while a more viscid, darker bile was found to be stored in the gallbladder. This had its later counterpart in the "A" and "B" bile described by B.B. Vincent Lyon (1880-1953), a Philadelphia gastroenterologist, who analyzed bile, obtained by duodenal intubation, for evidence of biliary tract disease. Lyon's "A" bile was thin and yellow; "B" bile, obtained after the gallbladder had been stimulated to contract, appeared darker and more viscid. The purpose was to search extracted bile microscopically for evidence of cholesterol crystals or calcium bilirubinate pigment as a sign of actual or potentialstone formation. Today this would be regarded as a mark of "lithogenic bile," a potential source of gallstones, bilirubin is derived from the Latin bili-, "bile,"
  • ruber, "red." The purpose of the term, apparently, was to distinguish bilirubin from what were thoughtto be other forms, namely, biliflavin (Latin flavus, "yellow") and biliverdin (French verd, from the Latin viridis, “green"). When the chemistry of bile was later adduced, there was no need for two words to describe the principal pigment of bile, which, although yellow, was still called bilirubin. "Biliflavin” was abandoned. "Biliverdin" remained as the designation of dehydrobilirubin or oxidized bilirubin, biology is from the Greek bios, "life," + logos, "word, reason, or study." The word is ofsurprisingly recent origin. Such a combined term was not used by the Greeks or, apparently, by anyone else until Ludolf Christian Treviranus (1779-1865), a professor of botany at Bonn, Germany, published his Biology, the Philosophy ofLiving Nature in 1802. From time immemorial, sages devoted a great deal ofstudy to life and living things, but to them this was "natural philosophy." biopsy is derived from the Greek bios, "life," + opsis, "vision," and is thus, literally, the "viewing of live matter,” as in the examination of a tissue specimen obtained from a living organism. This is in distinction to necropsy (q.v.), a "viewing of the dead." In common parlance, "biopsy" is used to refer both to the procedure and to the specimen thus obtained and examined. Only the former is correct, but the latter use probably will gain legitimacy by currency, birth is a near borrowing ofthe Old Norse byrth derived from the Germanic stem -ber, -bur, "to bear." The terminal "-th" designates a process. As "death" is the process of leaving this world, so "birth" is the process of entering it. bismuth in German is Wismuth, which appears to relate to Wiese, "meadow," combined with Mut, "spirit." The allusion is to the occurrence of bismuth ore in mines as an excrescence or "flowering." There is a contrived New Latin term bisemutum, butthis is a 16th-century attempt at scholarly transliteration of the German. black lung (see anthracosis) Black Plague (see plague) bladder is said to have originated with the postulated Indo-European root bhel, "blade, bloom, orsprout." This led to the Old English blaedre, "blister," meaning a watery swelling that sprouts from the skin. Thus, blister, bleb, and bladder seem to have a common source, -blast- as a combining form also seems to have originated with the postulated Indo-European root bhel, "blade, bloom, or sprout." This led to the Greek blastos, "germ or offspring." In 32 bleno- brachyembryology, the blastoderm is the initial mass of cells produced by cleavage of a fertilized ovum. When used as a suffix, "-blast" refers to a primitive cell type from which emerge more highly differentiated cells, as in myeloblast. A blastoma is a tumor resulting from the "sprouting" of primitive cells. bleno- is a combining form taken from the Greek blenna, "mucus." Blenorrhagic (+ Greek rhegnymai, "to break forth") refers to an excessive discharge of mucus. blephar- is a combining form from the Greek blepharon, "eyelid." Thus, blepharitis is an inflammation of the eyelid, and blepharoplasty is a repair or refashioning ofthe eyelid. blister is a modification of the Old French blostre, "a leprous nodule." Later, the term was restricted to fluid-filled excrescences of skin or othersurfaces. blood is still another word said to have originated with the postulated Indo-European root bhel, "bloom or sprout," though the connection is less than certain. It is conceivable that ancient people looked upon the effusion from incised skin as a sort of "blooming." The Old English word was blod, pronounced to rhyme with "food." In the early 16th century the vowel sound was shortened to rhyme with "good," and only later did the spelling change to "blood," the pronunciation coming to rhyme with "flood." A person presumed to be of aristocratic pedigree is sometimes called a “blue blood," despite the factthat his actual blood is as red as anyone else's. Aristocratic Castilians prided themselves on their lineage, in proof of which they pointed to the veins of their arms and hands, which, under fair and fine skin, appeared blue. This was in contrast to the venous pattern apparent in persons of supposedly lesser rank whose antecedents had mated with dark-skinned Moors. The Spanish sangre azul was, then, taken as evidence of noble birth. boil as a term for a focal suppurative swelling in the skin is said to have originated with the Gothic uf-bauljan, "to blow up." The Old English word was byl, and in some archaic dialects "boil" is still pronounced as "bile." bone is a strictly Germanic word, having no cognates in other Indo-European languages. The German bein and Swedish ben both mean "leg" as well as "bone.” The Latin for bone is os, ossis, from which comes the prefix "osteo-." bone break fever (see dengue) borborygmus is an almost direct borrowing of the word that meant to the Greeks what it means to us: "gut rumbling or growling bowels." The inference thatit is a classic example of onomatopoeia, as an echoic word, is inescapable, bosom (see breast) botulism comes from the Latin botulus, "sausage." The term refers to an often lethal toxic paralysis first observed in 19th-century Germany and immediately attributed to the eating of contaminated sausage. The poisonous substance was first called "botuline," that is, a derivative of sausage. Not until the end of the century was a bacterial source identified and named Bacillus botulinus. Botox is Allergan's trademark name for botulinum toxin type A, recently introduced in cosmetic surgery as an agent to temporarily eliminate skin wrinkles; it has been also used for temporary relief of esophageal achalasia, bougie is a direct borrowing ofthe French word for "taper or candle" and refers in surgery to an instrument used to dilate orifices. The idea is not that candles were used as dilators (though this is possible) but rather that dilators were shaped like candles, being smaller atthe tip than atthe base. Our adjective “tapered" conveys this sense. The French bougie was taken from Bejaia, the name of an Algerian port town, long the center of the wax trade and a source of quality candles, bowel originated with the Latin botulus, "sausage," which in Vulgar Latin became botellus. This was shortened in French to boel and became bouele in Middle English. The external appearance of the intestine, indeed, suggests that of a sausage. The fact that sausages were originally encased in segments of animal bowel, usually that of sheep, is merely incidental. The Romans had a perfectly proper name for the bowels, intestina. bowleg (see valgus) brachial as an indicator of reference to the upper extremities is taken from the Latin brachium, "arm." brachy- is a combining form taken from the Greek brachys, "short." Itis notto be confused 33 brachydactylia bruit with brachial as a reference to the arm (from the Latin brachium, "arm") or with brady- (q.v.). brachydactylia (brachy- + Greek daktylos, "finger") is an abnormal stubbiness of the fingers and toes. brachygnathia (brachy- + Greek gnathos, "jaw") is evident as a pronounced recession ofthe mandible. brachytherapy (brachy- + Greek therapeia, "treatment") is the application ofionizing radiation from a source placed on or near the surface of the body. An example is radiation applied a short distance from the chest wall and targeted to a coronary artery for the purpose of preventing or retarding restenosis following angioplasty or stenting, brady- is a combining form taken from the Greek bradys, "slow." bradycardia is a slower than normal rate of heartbeat (brady- + Greek kardia, "heart"), bradykinin was discovered as a substance resulting from the action of snake venom on plasma globulin. When injected into experimental animals, the substance caused lowering of blood pressure and slowly developing contraction of the gut. Because of this slow response by the gut, Rocha de Silva and his associates (Am / Physiol. 1949;156:261) named the substance, now known to be a polypeptide, by linking brady- + Greek kinein, "to move." bradyphrenia is a condition marked by excessive fatiguability of mental and psychomotor action (brady- + Greek phren, "mind"), such as seen in cases of epidemic encephalitis, brain is said to have its origin in the Old Teutonic root bragno[m], leading to the Old English braeg[e]n. While this may have a tenuous relation to the Greek bregma, "the top of the head," it should come as no surprise that there is no classical term, handed down through the ages, for the brain as an organ. The ancients had only a vague and uncertain concept of the brain’s function. Oddly, they tended to place the seat of emotions in more mundane structures, such as the kidneys, spleen, and liver, brandy face (see rosacea) breast is a distant relative of the Middle High German bruistem, which meant “to swell up.” Similarly, bosom is attributed to the Sanskrit bhasman, "blowing, as a bellows." Buxom, on the other hand, once spelled “bughsom," descended from the Old English bugan, which meant "to bow or bend." Hence, in the old days, a "buxom bride" was much admired as one who gave promise of being pliant and obedient. Later, the meaning changed to approach that of "blithe" and, still later, to "full of health and vigor." To have arrived at its present meaning, "buxom" must have suggested to someone that generously proportioned female breasts connote vim and vitality. bregma is the point on the surface of the skull at the junction of the sagittal and coronal suture lines. The term is Greek for "the top of the head." brevis is Latin for "short" and used in anatomy mainly to distinguish short and long (longus) paired muscles. bronchiectasis (see ectasia) bronchus is a dissimulated borrowing of the Greek bro[n]gchos, by which the ancient Greeks referred to conduits of the lung. This may, in turn, have been derived from the Greek brechein, "to be moistened," in the sense thatthe bronchial lining is always moist. brucellosis is a disease named after Sir David Bruce (1855-1931), an English army surgeon who identified the cause of undulant, or Malta, fever in 1887. Bruce found the infecting bacteria, Bacillus melitensis (the latter term being Latin for "Maltese"), in the spleens of British soldiers who died of undulant fever on the Mediterranean island of Malta. The stricken soldiers had contracted the disease by drinking contaminated goat's milk. The counterpart among domestic animals is Bang's disease, named for Bernard L. F. Bang, a Danish veterinarian. bruise comes from the Old French bruiser, "to break, smash, or shatter." When we refer to a hefty hulk of a fellow capable of "taking the place apart" as a "bruiser," we are using the term in the original sense. bruit comes through the French from the Latin brugitus, "a rumbling." This, in turn, may be related to the Latin rugire, "to roar." The Oxford English Dictionary suggests thatthe initial "b" may have been added for an echoic effect. 34 bruxism burking bruxism is a classical term for gnashing the teeth and is derived from the Greek brychein, "to grind or gnash the opposing rows of molar teeth." Gnash is of Old Norse descent and probably began as an imitative sound. Habitual bruxism or gnashing of the teeth can cause dental damage and may contribute to the temperomandibular joint syndrome. bubo comes from the Greek boubon, which was variously used to refer to the groin or to swelling in the groin. An association between pestilential fever and glandular swelling in the groin was recognized as early as the 1st century A.D. Reaching an epidemic scale and more than decimating the population of Europe in the Middle Ages, the disease became known as the bubonic plague. The causative organism was known as Pasteurella pestis until 1970; since then it has been classified as Yersinia pestis, commemorating its discovery in 1894 by Alexander Yersin (1863- 1943), a Swiss bacteriologist then working in Hong Kong, (see plague) buccal refers to the inside of the cheek and is said to have originated in the Hebrew bukkah, "empty, hollow." The Latin bucca means "cheek" and also "a loudmouthed person." We still use "cheek" to describe a person who exhibits undue arrogance. The homonym "buckle" first meant the fastening of a helmet's chin strap lying along the cheek. The Latin buccina (from the Greek bukane) means "trumpet." The buccinator muscle gives tonus to the wall of the cheek and is essential to blowing a horn. However, a buccaneer, while he may be a bold fellow with "cheek," takes his name from the French boucanier, originally "one who grills meat on a frame," a practice first observed among natives of the West Indies. The popular meaning ofthe French boucan is "rowdy." buffer is a term for any substance in solution that serves to maintain a given pH when an acid or alkali is introduced. It is said to have originated, indirectly, around the turn of the century, from the writings of Soreh P.L. Sorenson (1869-1939), a Danish chemist. Actually, Sorenson wrote in French and used the word tampon, which can refer to either a plug or a pad. This was translated through the German into English as "buffer," in the sense of "warding off a blow." bulimia means "excessive or exaggerated appetite." The word comes from the Greek bous, "ox," + limos, "hunger." The Greeks often used an allusion to the ox to describe whatever was huge or monstrous. In this same manner we allude to the horse in our use of "horseradish" or "horselaugh." At the risk of mixing our animals, we might say that bulimia leads to "eating like a horse." bulla in Latin was "a bubble, stud, or knob," hence any rounded protrusion, particularly that which was hollow or cystic. The ethmoid bulla is a rounded protrusion of the ethmoid bone into the lateral wall of the nasal cavity, enclosing an air cell or sinus. Also, blisters on the skin or blebs on the pleura are called bullae, bunghole is a vulgar term for the anus. The same word more properly refers to the small opening in the cover through which a cask or barrel is filled or emptied. The "bung" was the stopper by which the hole was plugged, bunion comes from the Italian bugnone, "a lump." This, in turn, probably came from the Greek bounos, "hill or mound," which may be of Cyreniac origin, (see hallux; also valgus) burking is an eponymic addition to the English language, seldom used today but nevertheless of interest to medical students. As the study of human anatomy became widespread and essential to the instruction of doctors-to-be, cadavers became increasingly difficult to procure. With no legal provision for subjects suitable for dissection, the practice of body snatching and grave robbing flourished. Two proficient procurers in Edinburgh were named Burke and Hare. When corpses were in short supply, Burke undertook to ignore the distinction between the quick and the dead by murdering those poor persons assayed to be worth more dead than alive. Robert Knox, then professor of anatomy at Edinburgh, made insufficient inquiry into the provenance of specimens delivered to him and became an innocent victim of these nefarious acts which, when discovered, ended the careers of Burke, Hare, and Knox. Meanwhile, the practice had become a cause for concern throughout Britain and came to 35 burp buxom be called "burking." The wicked business ended when the procurement of legitimately dead bodies for dissection was legalized by Warburton's Anatomy Act of 1832. burp (see eructation) bursa is a direct borrowing of the Medieval Latin word for "bag or purse." This was taken from the Greek bursa, "a hide or wineskin." In medical parlance, a bursa is a sack-like structure containing a viscid fluid that serves as a shock absorber and lubricant for bony joints. The English word bursar is similarly derived and designates "the one who holds the purse." buttock refers to one of the two gluteal prominences of man or animals and is a diminutive of "butt," meaning the thick stump or end of anything. In Old English, -ock was a diminutive suffix, as in "bullock," meaning a small bull, or "hillock," meaning a small hill, butyric is from the Greek bouturos, "butter," which, in turn, is a combination of bous, "ox," + tyros, "cheese." It happens that cheese was known before butter, and the Romans considered butter useful as a salve or source of oil for lamps but not as a food. Butyric acid was originally discovered in rancid butter, buxom (see breast)