| Aarskog, Dagfinn | Norwegian paediatrician, *1928. See: Aarskog-Scott syndrome. (05 Mar 2000) |
|---|---|
| Aarskog-Scott syndrome | A syndrome of ocular hypertelorism, anteverted nostrils, broad upper lip, saddle-bag scrotum, and laxity of ligaments resulting in genu recurvatum, flat feet, and hyperextensible fingers; X-linked and autosomal dominant forms. Synonym: Aarskog-Scott syndrome. (05 Mar 2000) |
| AASH | <abbreviation> Adrenal androgen-stimulating hormone. (05 Mar 2000) |
| AAV | <abbreviation> Adeno-associated virus. (05 Mar 2000) |
| Ab | <immunology> Portion of antigen that interacts with an MHC molecule. (18 Nov 1997) |
| ab er-de-vine | <ornithology> The European siskin (Carduelis spinus), a small green and yellow finch, related to the goldfinch. Source: Websters Dictionary (01 Mar 1998) |
| ab- | 1. <prefix> A prefix meaning from or away from, off. 2. Applied to electrical units in the CGS-electromagnetic system to distinguish them from units in the CGS-electrostatic system (prefix stat-) and those in the metric system or SI system (no prefix). Origin: L. Ab, from, usually abs-before c, q, and t; often a-before m, p, or v (05 Mar 2000) |
| AB-C protease | <enzyme> From agkistrodon bilineatus; activates protein c; inhibited by calcium; amino acid sequence given in first source Registry number: EC 3.4.21.- (26 Jun 1999) |
| abaca | <botany>The Manila hemp plant (Musa textilis); also, its fibre. Origin: The native name. (19 Mar 1998) |
| abacterial thrombotic endocarditis | Verrucous endocardial lesions occurring in the terminal stages of many chronic infectious and wasting diseases. Synonym: abacterial thrombotic endocarditis, cachectic endocarditis, terminal endocarditis, thromboendocarditis. (05 Mar 2000) |
| abactinal | <zoology> Pertaining to the surface or end opposite to the mouth in a radiate animal; opposed to actinal. The aboral or abactinal area. Origin: L. Ab + E. Actinal. (19 Mar 1998) |
| abacus | 1. A table or tray strewn with sand, anciently used for drawing, calculating, etc. 2. A calculating table or frame; an instrument for performing arithmetical calculations by balls sliding on wires, or counters in grooves, the lowest line representing units, the second line, tens, etc. It is still employed in China. 3. The uppermost member or division of the capital of a column, immediately under the architrave. See Column. A tablet, panel, or compartment in ornamented or mosaic work. 4. A board, tray, or table, divided into perforated compartments, for holding cups, bottles, or the like; a kind of cupboard, buffet, or sideboard. Abacus harmonicus, an ancient diagram showing the structure and disposition of the keys of an instrument. Origin: L. Abacus, abax, Gr. Source: Websters Dictionary (01 Mar 1998) |
| abada | <zoology> The rhinoceros. Origin: Pg, the female rhinoceros. (19 Mar 1998) |
| Abadie | Joseph Louis Irenee Jean, French neurosurgeon, 1873-1946. See: Abadie's sign of tabes dorsalis. (05 Mar 2000) |
| Abadie's sign of tabes dorsalis | Insensibility to pressure over the tendo achillis. (05 Mar 2000) |