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⇱ heterosis - WordReference.com Dictionary of English

heterosis

US:USA pronunciation: respellingUSA pronunciation: respelling(het′ə rō′sis)


WordReference Random House Unabridged Dictionary of American English © 2026
het•er•o•sis  (het′ə rō′sis),USA pronunciation n. [Genetics.]
  1. Geneticsthe increase in growth, size, fecundity, function, yield, or other characters in hybrids over those of the parents. Also called hybrid vigor. 
  • Late Greek hetérōsis an alteration. See hetero-, -sis
  • 1910–15

Collins Concise English Dictionary © HarperCollins Publishers::
heterosis /ˌhɛtəˈrəʊsɪs/ n
  1. another name for hybrid vigour
Etymology: 19th Century: from Late Greek: alteration, from Greek heteroioun to alter, from heteros other, different
'heterosis' also found in these entries (note: many are not synonyms or translations):

Forum discussions with the word(s) "heterosis" in the title:


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