| AES | acetone-extracted serum; American Electroencephalographic Society; American Encephalographic Society... |
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| ACP | accessory conduction pathway; acid phosphatase; acyl carrier protein; American College of Pathologis... |
| AAN | AIDS-associated nephropathy; alpha-amino nitrogen; American Academy of Neurology; American Academy o... |
| ADA | adenosine deaminase; American Dental Association; American Dermatological Association; American Diab... |
| AGA | accelerated growth area; allergic granulomatosis and angiitis; American Gastroenterological Associat... |
| haemorrhagic fever, american | Diseases caused by american haemorrhagic fever viruses (tacaribe complex viruses). (12 Dec 1998) |
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| south american blastomycosis | A chronic fungal infection caused by Paracoccidioides brasiliensis, characterised by primary pulmonary lesions with dissemination to many visceral organs. Common findings include ulcerative granuloma lesions to the buccal mucosa (inner lining of the cheek) and nasal mucosa that extend to the surrounding skin. Generalised lymphangitis is also typical. More commonly seen in South America and the tropics. (27 Sep 1997) |
| South American trypanosomiasis | Trypanosomiasis caused by Trypanosoma (or Schizotrypanum) cruzi and transmitted by certain species of reduviid (triatomine) bugs. In its acute form, it is seen most frequently in young children, with swelling of the skin at the site of entry, most often the face, and regional lymph node enlargement; in its chronic form it can assume several aspects, commonly cardiomyopathy, but megacolon and megaesophagus also occur; natural reservoirs include dogs, armadillos, rodents, and other domestic, domiciliated, and wild mammals. Synonym: Chagas' disease, Chagas-Cruz disease, Cruz trypanosomiasis. (05 Mar 2000) |
| North American blastomycosis | A fungal infection caused by Blastomyces dermatitidis. This rare fungal infection may produce inflammatory lesion of the skin or lungs or present as a disseminated disease to the skin, lungs, bones, liver, spleen and central nervous system. Uncommon unless patient is immunocompromised (AIDS). (27 Sep 1997) |
| indians, central american | An ethnic group belonging to the mongoloid racial stock in central america. This does not include mexican indians. (12 Dec 1998) |
| indians, north american | An ethnic group belonging to the mongoloid racial stock in north america. (12 Dec 1998) |
| indians, south american | An ethnic group belonging to the mongoloid racial stock in south america. (12 Dec 1998) |
| oil of American wormseed | Volatile oil from the fresh above ground part of the flower, American wormseed, Chenopodium ambrosioides, or C. Anthelminticum. Used as an anthelmintic. Synonym: oil of American wormseed. (05 Mar 2000) |
| French-American-British classification | <haematology> The classification of acute myeloid leukaemia on the basis of bone marrow and peripheral blood features. M0: Acute myeloid leukaemia with minimal evidence of myeloid differentiation. M1: Acute myeloblastic leukaemia. M2: Acute myeloblastic leukaemia with differentiation. M3: Acute promyelocytic leukaemia. M4: Acute myelomonocytic leukaemia. M5: Acute monocytic leukaemia. M6: Acute erythroleukaemia. M7: Acute megakaryocytic leukaemia. Acronym: FAB (07 Apr 1998) |
| amido black | <chemical> 4-amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-(phenylazo)-2,7- naphthalenedisulfonic acid disodium salt. A dye used to stain proteins in electrophoretic techniques. It is used interchangeably with its acid form. Pharmacological action: dyes. Chemical name: 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-(phenylazo)-, disodium salt (12 Dec 1998) |
| amido black 10B | An acid diazo dye, C12H14N6O9S2Na2, used as a connective tissue stain, for staining protein in paper chromatography, and in electrophoresis. (05 Mar 2000) |
| animal black | Charcoal produced by incomplete combustion of animal tissues, especially bone. Synonym: animal black, bone black, bone charcoal. (05 Mar 2000) |
| anti-black-tongue factor | A precursor of NAD, that is a product of the oxidation of nicotine. (18 Nov 1997) |
| black | 1. That which is destitute of light or whiteness; the darkest colour, or rather a destitution of all colour; as, a cloth has a good black. "Black is the badge of hell, The hue of dungeons, and the suit of night." (Shak) 2. A black pigment or dye. 3. A negro; a person whose skin is of a black colour, or shaded with black; especially. A member or descendant of certain African races. 4. A black garment or dress; as, she wears black; pl. Mourning garments of a black colour; funereal drapery. "Friends weeping, and blacks, and obsequies, and the like show death terrible." (Bacon) "That was the full time they used to wear blacks for the death of their fathers." (Sir T. North) 5. The part of a thing which is distinguished from the rest by being black. "The black or sight of the eye." (Sir K. Digby) 6. A stain; a spot; a smooch. "Defiling her white lawn of chastity with ugly blacks of lust." (Rowley) Black and white, writing or print; as, I must have that statement in black and white. Blue black, a pigment of a blue black colour. Ivory black, a fine kind of animal charcoal prepared by calcining ivory or bones. When ground it is the chief ingredient of the ink used in copperplate printing. Berlin black. See Berlin. 1. Destitute of light, or incapable of reflecting it; of the colour of soot or coal; of the darkest or a very dark colour, the opposite of white; characterised by such a colour; as, black cloth; black hair or eyes. "O night, with hue so black!" (Shak) 2. In a less literal sense: Enveloped or shrouded in darkness; very dark or gloomy; as, a black night; the heavens black with clouds. "I spy a black, suspicious, threatening cloud." (Shak) 3. Dismal, gloomy, or forbidding, like darkness; destitute of moral light or goodness; atrociously wicked; cruel; mournful; calamitous; horrible. "This day's black fate." "Black villainy." "Arise, black vengeance." "Black day." "Black despair." 4. Expressing menace, or discontent; threatening; sullen; foreboding; as, to regard one with black looks. Black is often used in self-explaining compound words; as, black-eyed, black-faced, black-haired, black-visaged. Black act, the English statute 9 George I, which makes it a felony to appear armed in any park or warren, etc, or to hunt or steal deer, etc, with the face blackened or disguised. Subsequent acts inflicting heavy penalties for malicious injuries to cattle and machinery have been called black acts. <chemistry> Black angel, the palm cockatoo. See Cockatoo. Black copper. Same as Melaconite. Black currant. <botany> An American hawk (Buteo Harlani). Synonym: Dark, murky, pitchy, inky, somber, dusky, gloomy, swart, Cimmerian, ebon, atrocious. Origin: OE. Blak, AS. Blaec; akin to Icel. Blakkr dark, swarthy, Sw. Black ink, Dan. Blaek, OHG. Blach, LG. & D. Blaken to burn with a black smoke. Not akin to AS. Blac, E. Bleak pallid. 98. Source: Websters Dictionary (01 Mar 1998) |
| black art | The art practiced by conjurers and witches; necromancy; conjuration; magic. This name was given in the Middle Ages to necromancy, under the idea that the latter term was derived from niger black, instead of nekros, a dead person, and manteia, divination. Source: Websters Dictionary (01 Mar 1998) |