Medical Dictionary
heterosis
noun het·er·o·sis \ˌhet-ə-ˈrō-səs\
plural het·er·o·ses \-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
—het·er·ot·ic \-ˈrät-ik\ adjective
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