| SBB | Sudan Black B |
|---|---|
| BADS | black locks-albinism-deafness syndrome |
| BD | barbital-dependent; barbiturate dependence; base deficit; base of prism down; basophilic degeneratio... |
| BF | bentonite flocculation; bile flow; black female; blastogenic factor; blister fluid; blood flow; body... |
| bf | black female; bouillon filtrate [tuberculin] |
pin-head pigmentation spot
| koplik spot | <dermatology> Small red spots with bluish-white centres on the buccal mucosa (lining of cheek), appearing in the early stages (pre-rash) of measles. (27 Sep 1997) |
|---|---|
| utricular spot | The neuroepithelial sensory receptor in the inferolateral wall of the utricle; hair cells of the neuroepithelium support the statoconial membrane and have terminal arborizations of vestibular nerve fibres around their bodies; sensitive to linear acceleration in the longitudinal axis of the body and to gravitational influences. Synonym: macula utriculi, utricular spot. (05 Mar 2000) |
| flying spot microscope | <instrument> A microscope in which a moving spot of light is imaged in the object plane, the energy transmitted by the specimen being detected with a photoelectric cell; the light source may be a cathode ray tube, a scanning disk or drum, or an oscillating mirror. (05 Mar 2000) |
| focal spot | The site of bombardment by electrons and emission of X-rays from the anode of an X-ray tube. See: focal spot size. (05 Mar 2000) |
| focal spot size | The measured size of a focal spot, a function of its actual size and the angulation of the anode surface. See: focal spot. (05 Mar 2000) |
| forty-spot | <zoology> The Tasmanian forty-spotted diamond bird (Pardalotus quadragintus). Source: Websters Dictionary (01 Mar 1998) |
| liver spot | A variably pigmented lentigo occurring on exposed skin of older Caucasians. Synonym: liver spot, solar lentigo. (05 Mar 2000) |
| 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) |
| black bass | <zoology> 1. An edible, fresh water fish of the United States, of the genus Micropterus. The small-mouthed kind is M. Dolomiei; the largemouthed is M. Salmoides. 2. The sea bass. See Blackfish. Source: Websters Dictionary (01 Mar 1998) |
| black book | 1. One of several books of a political character, published at different times and for different purposes; so called either from the colour of the binding, or from the character of the contents. 2. A book compiled in the twelfth century, containing a description of the court of exchequer of England, an official statement of the revenues of the crown, etc. 3. A book containing details of the enormities practiced in the English monasteries and religious houses, compiled by order of their visitors under Henry VIII, to hasten their dissolution. 4. A book of admiralty law, of the highest authority, compiled in the reign of Edw. III. 5. A book kept for the purpose of registering the names of persons liable to censure or punishment, as in the English universities, or the English armies. 6. Any book which treats of necromancy. Source: Websters Dictionary (01 Mar 1998) |