heterosis Meaning, Definition & Usage
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noun (genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
hybrid vigor.
WordNet
Het`e*ro"sis noun
Etymology
NL., fr. Gr. alteration, fr. other, different.Definitions
(Rhet.) A figure of speech by which one form of a noun, verb, or pronoun, and the like, is used for another, as in the sentence: "What is life to such as me?" Aytoun.