| heteroptera | <zoology> A suborder of Hemiptera, in which the base of the anterior wings is thickened. See Hemiptera. Origin: NL, from Gr. Other + a wing. Source: Websters Dictionary (01 Mar 1998) |
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| heteroptics | False optics. Origin: Hetero- + optics. Source: Websters Dictionary (01 Mar 1998) |
| heteropyknosis | Any state of variable density or condensation, usually in different chromosomes or between different regions of the same chromosome; a region may be attentuated (negative h) or accentuated (positive h). Origin: hetero-+ G. Pyknos, dense (05 Mar 2000) |
| heteropyknotic | Relating to or characterised by heteropyknosis. (05 Mar 2000) |
| heteropyknotic chromatin | <cell biology, genetics> The chromosomal regions that are condensed during interphase and at the time of nuclear division. They show what is considered an abnormal pattern of staining as opposed to euchromatin. Can be subdivided into constitutive regions (present in all cells) and facultative heterochromatin (present in some cells only). The inactive X chromosome of female mammals is an example of facultative heterochromatin. (18 Nov 1997) |
| heterosaccharide | A glycoside in which a sugar group is attached to a nonsugar group; e.g., amygdalin. (05 Mar 2000) |
| heteroscedasticity | Non-constancy of the variance of a measure over the levels of the factor under study. Origin: hetero + G. Skedastikos, pertaining to scattering, fr. Skedannumi, to scatter (05 Mar 2000) |
| heterosexual | A person sexually attracted to persons of the opposite sex. The word straight has become synonymous with heterosexual. Heterosexual can also be an adjective. (12 Dec 1998) |
| heterosexuality | Sexuality directed toward someone of the opposite sex. (12 Dec 1998) |
| heteroside | A compound containing two or more different carbohydrate residues that are covalently linked to a noncarbohydrate moiety. (05 Mar 2000) |
| heterosis | <biology> The observation that in some circumstances, the heterozygotes in a population have higher fitness than the homozygotes, for example they grow better, are better able to survive, and/or are more fertile than the homozygotes. The effect of heterosis can also apply to hybrids (thus hybrid vigor). (09 Oct 1997) |
| heterosmia | Incorrect recognition of odours. Synonym: heterosmia. Origin: G. Allotrios, foreign, + osme, smell (05 Mar 2000) |
| heterosomati | <zoology> An order of fishes, comprising the flounders, halibut, sole, etc, having the body and head asymmetrical, with both eyes on one side. Synonym: Heterosomata, Heterosomi. Origin: NL, fr. Gr. Other +, body. Source: Websters Dictionary (01 Mar 1998) |
| heterosome | In genetics, the chromosome pair that is different in the two sexes. See: sex chromosomes. Origin: hetero-+ G. Soma, body (05 Mar 2000) |
| heterospecific | Heterologous, as pertains to grafts. (05 Mar 2000) |
| heterotrophic |
Requiring organic substrates for growth and development; being incapable of synthesizing required organic materials from inorganic sources. (20)
출처: ppathw3.cals.cornell.edu/glossary/Defs_H.htm
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| heterogamy |
Plasmogamy between morphologically different gametes. (15)
출처: ppathw3.cals.cornell.edu/glossary/Defs_H.htm
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| heterothallic |
The condition of being self-sterile, requiring a partner for sexual reproduction. (15)
출처: ppathw3.cals.cornell.edu/glossary/Defs_H.htm
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| heterothallism |
The phenomenon in which sexual reproduction requires the involvement of two different thalli. (16)
출처: ppathw3.cals.cornell.edu/glossary/Defs_H.htm
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| heteroploid |
Having a complement of chromosomes differing from that characteristic of the species. (16)
출처: ppathw3.cals.cornell.edu/glossary/Defs_H.htm
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