heterosis

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het·er·o·sis

 (hĕt′ə-rō′sĭs)
[Late Greek heterōsis, alteration, alteration of Greek heteroiōsis, from heteroioun, to alter, from heteroios, different in kind, from heteros, other; see hetero-.]

het′er·ot′ic (-rŏt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

heterosis

(ˌhɛtəˈrəʊsɪs)
n
(Biology) biology another name for hybrid vigour
[C19: from Late Greek: alteration, from Greek heteroioun to alter, from heteros other, different]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

het•er•o•sis

(ˌhɛt əˈroʊ sɪs)

n.
the increase in growth, size, yield, or other characters in hybrids over those of the parents.
[1910–15; < Late Greek hetérōsis an alteration. See hetero-, -osis]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

heterosis

abnormal development, especially increased size, in plants or animals, usually as a result of cross-breeding.
See also: Animals, Plants
abnormal development, especially increased size, in plants or animals, usually as a result of crossbreeding.
See also: Size
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heterosis - (genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
tendency, inclination - a characteristic likelihood of or natural disposition toward a certain condition or character or effect; "the alkaline inclination of the local waters"; "fabric with a tendency to shrink"
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
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