| heter- | See: hetero-. (05 Mar 2000) |
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| heteracanth | <zoology> Having the spines of the dorsal fin unsymmetrical, or thickened alternately on the right and left sides. Origin: Hetero- + Gr. A spine. Source: Websters Dictionary (01 Mar 1998) |
| heteradelphus | Unequal conjoined twins in which the smaller incomplete parasite is attached to the larger, more nearly normal autosite. See: conjoined twins. Origin: heter-+ G. Adelphos, brother (05 Mar 2000) |
| heterakid | Common name for members of the family Heterakidae. (05 Mar 2000) |
| Heterakis | A genus of important nematode parasites (family Heterakidae, order Ascaridida). Heterakis gallinarum is the caecal worm of chickens, turkeys, and many gallinaceous birds, and is the vector of Histomonas meleagridis, a protozoan that causes histomoniasis. Other species include Heterakis brevispiculum, Heterakis dispar, Heterakis isolonche, and Heterakis spumosa, the latter an abundant caecal parasite of rats and other rodents. (05 Mar 2000) |
| heteralius | Unequal conjoined twins in which the parasite appears as little more than an excrescence on the autosite. See: conjoined twins. Origin: heter-+ G. Halios, useless (05 Mar 2000) |
| heterauxesis | <botany> Unequal growth of a cell, or of a part of a plant. Origin: NL, fr. Gr. The other + growth. Source: Websters Dictionary (01 Mar 1998) |
| heteraxial | Having mutually perpendicular axes of unequal length. (05 Mar 2000) |
| hetercephalous | <botany> Bearing two kinds of heads or capitula; said of certain composite plants. Origin: Hetero- + Gr. Head. Source: Websters Dictionary (01 Mar 1998) |
| heterecious | Having more than one host; said of a parasite passing different stages of its life cycle in different animals. Synonym: metoxenous. Origin: heter-+ G. Oikion, home (05 Mar 2000) |
| heterecism | The occurrence, in a parasite, of two cycles of development passed in two different hosts. Synonym: metoxeny. Origin: heter-+ G. Oikion, home (05 Mar 2000) |
| heteresthesia | A change occurring in the degree (either plus or minus) of the sensory response to a cutaneous stimulus as the latter crosses a certain line on the surface. Origin: heter-+ G. Aisthesis, sensation (05 Mar 2000) |
| hetero- | Combining form from the Greek heteros meaning different. The opposite is homo- from the greek homos meaning same. For example, heterogeneous and homogeneous, heterosexual and homosexual, etc. (12 Dec 1998) |
| hetero-osteoplasty | Bone transplantation from one species to another; formerly used to denote transplants from one person to another. (05 Mar 2000) |
| heteroagglutinin | A form of haemagglutinin, one that agglutinates the red blood cells of species other than that in which the heteroagglutinin occurs. See: haemagglutinin. (05 Mar 2000) |
| 12-HETE 10-11 reductase | <enzyme> Converts 12-hydroxy-5,8,10,14-eicosatetraenoic acid to 12-hydroxy-5,8,14-eicosatrienoic acid Registry number: EC 1.3.- (26 Jun 1999) |
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