| aegyptianellosis | A tickborne disease of birds caused by rickettsiae of the genus Aegyptianella and characterised by punctiform haemorrhages of the serosa and anaemia. (05 Mar 2000) |
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| aelurophobia | <psychology> Morbid fear of or aversion to cats. Synonym: aelurophobia. Origin: G. Ailouros, cat, + phobos, fear (05 Mar 2000) |
| Aelurostrongylus | A common genus of lungworm in cats; land snails and slugs serve as intermediate hosts and snail-eating animals can serve as transport hosts. Origin: G. Ailuros, cat, + Mod. L., fr. G. Strongylus, round (05 Mar 2000) |
| aeneous | <zoology> Coloured like bronze. Origin: L. Aeneus. Source: Websters Dictionary (01 Mar 1998) |
| aeolotropic | <physics> Exhibiting differences of quality or property in different directions; not isotropic. Origin: Gr. Changeful + a turning, to turn. Source: Websters Dictionary (01 Mar 1998) |
| aeolotropy | <physics> Difference of quality or property in different directions. Source: Websters Dictionary (01 Mar 1998) |
| aeolus | The god of the winds. Origin: L, fr. Gr. Source: Websters Dictionary (01 Mar 1998) |
| aepyornis | A gigantic bird found fossil in Madagascar. Origin: Gr. High + bird. Source: Websters Dictionary (01 Mar 1998) |
| aequorin | <chemical> A photoprotein isolated from the bioluminescent jellyfish aequorea. It emits visible light by an intramolecular reaction when a trace amount of calcium ion is added. The light-emitting moiety in the bioluminescence reaction is believed to be 2-amino-3-benzyl-5-(p-hydroxyphenyl)pyrazine (af-350). Chemical name: Aequorins (12 Dec 1998) |
| aerate | 1. To combine or charge with gas; usually with carbonic acid gas, formerly called fixed air. "His sparkling sallies bubbled up as from aerated natural fountains." (Carlyle) 2. To supply or impregnate with common air; as, to aerate soil; to aerate water. 3. <physiology> To expose to the chemical action of air; to oxygenate (the blood) by respiration; to arterialize. Aerated bread, bread raised by charging dough with carbonic acid gas, instead of generating the gas in the dough by fermentation. Origin: Cf. F. Aerer. See Air. Source: Websters Dictionary (01 Mar 1998) |
| aeration | <physiology> To add air or oxygen into a liquid. (06 May 1997) |
| aeration basin | A basin where oxygen is supplied by mechanical agitation or pneumatic means to enhance the breakdown of wastes held in suspension. (05 Dec 1998) |
| aercyst | <botany> One of the air cells of algals. Origin: Aero- + cyst. Source: Websters Dictionary (01 Mar 1998) |
| aerenchyma | In plants, tissue incorporating large, gas-filled spaces interspersed with the cells in a characteristic pattern. (09 Oct 1997) |
| aerenchymous tissue | A type of plant tissue in which cells are unusually large, resulting in large air spaces in the plant organ, such tissues are often referred to as spongy and usually provide increased buoyancy. (09 Oct 1997) |