heterosis

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het·er·o·sis

 (hĕt′ə-rō′sĭs)
[Late Greek heterōsis, alteration, alteration of Greek heteroiōsis, from heteroioun, to alter, from heteroios, different in kind, from heteros, other; see hetero-.]

het′er·ot′ic (-rŏt′ĭk) adj.

heterosis

(ˌhɛtəˈrəʊsɪs)
n
(Biology) biology another name for hybrid vigour
[C19: from Late Greek: alteration, from Greek heteroioun to alter, from heteros other, different]

het•er•o•sis

(ˌhɛt əˈroʊ sɪs)

n.
the increase in growth, size, yield, or other characters in hybrids over those of the parents.
[1910–15; < Late Greek hetérōsis an alteration. See hetero-, -osis]

heterosis

abnormal development, especially increased size, in plants or animals, usually as a result of cross-breeding.
See also: Animals, Plants
abnormal development, especially increased size, in plants or animals, usually as a result of crossbreeding.
See also: Size
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heterosis - (genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
tendency, inclination - a characteristic likelihood of or natural disposition toward a certain condition or character or effect; "the alkaline inclination of the local waters"; "fabric with a tendency to shrink"
genetic science, genetics - the branch of biology that studies heredity and variation in organisms