heterosis

 : 
Noun
 : 
het=er=o=sis

WORDNET DICTIONARY

Noun heterosis has 1 sense

CIDE DICTIONARY

heterosisn. [NL., fr. Gr. alteration, fr. other, different.].
     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.  [1913 Webster]

OXFORD DICTIONARY

heterosis, n. the tendency of a cross-bred individual to show qualities superior to those of both parents.

Etymology
Gk f. heteros different

For further exploring for "heterosis" in Webster Dictionary Online


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