| allopathic keratoplasty | Corneal transplant with donor material of glass, plastic, or other inert material. (05 Mar 2000) |
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| allopathist | 1. One who is a practitioner of allopathy. 2. Erroneously, a traditional medical physician, as distinguished from eclectic or homeopathic practitioners. Synonym: allopathist. (05 Mar 2000) |
| allopathy | That system of medical practice which aims to combat disease by the use of remedies which produce effects different from those produced by the special disease treated; a term invented by Hahnemann to designate the ordinary practice, as opposed to homeopathy. Origin: Gr. Other + suffering, to suffer: cf. G. Allopathie, F. Allopathie. See Pathos. Source: Websters Dictionary (01 Mar 1998) |
| allopatric | <ecology> Relating to or involving two populations of the same species which cannot interbreed because they are separated by a geographic barrier (such as a mountain range or wide river). (09 Oct 1997) |
| allopatric speciation | <ecology> The evolutionary process through which two geographically separated (and therefore non-interbreeding) populations of the same species become less and less similar to each other over time (via mutation or the success of different traits in each environment) and eventually become distinctly different species. (09 Oct 1997) |
| allopatry | <ecology> The condition of two populations of the same species being separated by a geographic barrier that prevents them from interbreeding. (09 Oct 1997) |
| allopentaploid | Relating to a hybrid individual or cell with two or more sets of chromosomes derived from two different ancestral species; depending on the number of multiples of haploid sets, alloploid's are referred to as allodiploids, allotriploids, allotetraploids, allopentaploids, allohexaploids, etc. See: heterokaryon. Origin: allo-+ -ploid (05 Mar 2000) |
| allophanamide | <chemistry> A white, crystalline, nitrogenous substance, C2O2N3H5, formed by heating urea. It is intermediate between urea and cyanuric acid. Origin: Pref. Bi- + urea. Source: Websters Dictionary (01 Mar 1998) |
| allophanate hydrolase | <enzyme> An enzyme that catalyses the hydrolysis of allophanic acid to two molecules of ammonia plus two molecules of "active carbon dioxide". Chemical name: Urea-1-carboxylate amidohydrolase Registry number: EC 3.5.1.54 (12 Dec 1998) |
| allophanic acid | NH2CONHCOOH; urea carbonic acid;its amide is biuret (allophanamide). Synonym: carbamoylcarbamic acid, N-carboxyurea. (05 Mar 2000) |
| allophasis | Speech that is incoherent, disordered. Origin: allo-+ G. Phasis, speech (05 Mar 2000) |
| allophenic | Pertaining to an animal with different cellular phenotypes produced by combining dividing fertilised eggs (blastomeres) of different genotypes (i.e., from different pairs of parents). See: mosaic. Origin: allo-+ G. Phaino, to appear, + -ic (05 Mar 2000) |
| allophore | <biology> Chromatophores that have red pigment. (18 Nov 1997) |
| allophthalmia | A seldom-used term for a difference in the appearance of the two eyes, usually due to heterochromia iridis. Synonym: allophthalmia. Origin: hetero-+ G. Ophthalmos, eye (05 Mar 2000) |
| alloplasia | Synonym: heteroplasia. Origin: allo-+ G. Plasis, a molding (05 Mar 2000) |