heterosis

noun
het·​er·​o·​sis | \ ˌhe-tə-ˈrō-səs How to pronounce heterosis (audio) \

Definition of heterosis

: the marked vigor or capacity for growth often exhibited by crossbred animals or plants

called also hybrid vigor

Other Words from heterosis

heterotic \ ˌhe-​tə-​ˈrä-​tik How to pronounce heterotic (audio) \ adjective

First Known Use of heterosis

1914, in the meaning defined above

History and Etymology for heterosis

New Latin

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The first known use of heterosis was in 1914

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Cite this Entry

“Heterosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heterosis. Accessed 10 Jul. 2020.

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More Definitions for heterosis

heterosis

noun
het·​er·​o·​sis | \ ˌhet-ə-ˈrō-səs How to pronounce heterosis (audio) \
plural heteroses\ -​ˌsēz How to pronounce heteroses (audio) \

Medical Definition of heterosis

: a marked vigor or capacity for growth that is often shown by crossbred animals or plants

called also hybrid vigor

Other Words from heterosis

heterotic \ -​ˈrät-​ik How to pronounce heterotic (audio) \ adjective

More from Merriam-Webster on heterosis

Rhyming Dictionary: Words that rhyme with heterosis

Britannica.com: Encyclopedia article about heterosis

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