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heterosises

 - 2 dictionary results

het⋅er⋅o⋅sis

  [het-uh-roh-sis]
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–noun Genetics.
the increase in growth, size, fecundity, function, yield, or other characters in hybrids over those of the parents.
Also called hybrid vigor.

Origin:
1910–15; < LGk hetérōsis an alteration. See hetero-, -sis
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: het·er·o·sis
Pronunciation: "het-&-'rO-s&s
Function: noun
Inflected Form: plural het·er·o·ses /-"sEz/
: a marked vigor or capacity for growth that is often shown by crossbred animals or plants called also hybrid vigor —het·er·ot·ic /-'rät-ik/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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