HETEROSIS
heterosis, hybrid vigor
(noun) (genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
Source: WordNet® 3.1
Etymology
Noun
heterosis (countable and uncountable, plural heteroses)
(genetics) The tendency of cross-breeding to produce an animal or plant with a greater hardiness than its parents; hybrid vigour
Anagrams
• isotheres, otherises, theorises
Source: Wiktionary
Het`e*ro"sis, n. Etym: [NL., fr. Gr. (Rhet.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition