heterosis

[het-uh-roh-sis]

Origin of heterosis

First recorded in 1910–15, heterosis is from the Late Greek word hetérōsis an alteration. See hetero-, -sis
Also called hybrid vigor.
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British Dictionary definitions for heterosis

heterosis

noun
  1. biology another name for hybrid vigour

Word Origin for heterosis

C19: from Late Greek: alteration, from Greek heteroioun to alter, from heteros other, different
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