heterosis

noun
het·er·o·sis | \ˌhe-tə-ˈrō-səs \

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 \ 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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heterosis

noun
het·er·o·sis | \ˌhet-ə-ˈrō-səs \
plural heteroses\-ˌsēz \

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 \ adjective

More from Merriam-Webster on heterosis

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Britannica.com: Encyclopedia article about heterosis

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