Heterosis is a term used by geneticists to describe the hybrid vigor shown by the offspring of genetically different parents.

Het`e*ro"sis (?), n. [NL., fr. Gr. alteration, fr. other, different.] 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?"



© Webster 1913.

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