heterosis


het·er·o·sis

noun \ˌhet-ə-ˈrō-səs\
plural het·er·o·ses \-ˌsēz\

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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