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homozygous

[hoh-muh-zahy-guh s, hom-uh-]
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adjective Biology.
  1. having identical pairs of genes for any given pair of hereditary characteristics.
  2. of or relating to a homozygote.
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Also ho·mo·zy·got·ic [hoh-moh-zahy-got-ik, hom-oh-] /ˌhoʊ moʊ zaɪˈgɒt ɪk, ˌhɒm oʊ-/.

Origin of homozygous

1900–05; homo- + Greek -zygos; see zygo-, -ous
Related formsho·mo·zy·gos·i·ty [hoh-moh-zahy-gos-i-tee, -zi-, hom-oh-] /ˌhoʊ moʊ zaɪˈgɒs ɪ ti, -zɪ-, ˌhɒm oʊ-/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for homozygosity

homozygous

adjective
  1. genetics (of an organism) having identical alleles for any one genethese two fruit flies are homozygous for red eye colour Compare heterozygous
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Derived Formshomozygously, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for homozygosity

homozygous

adj.

1902, from homo- (1) "same" + zygote + -ous. Related: homozygote.

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Online Etymology Dictionary, © 2010 Douglas Harper

homozygosity in Medicine

homozygosity

(hō′mō-zī-gŏsĭ-tē, hŏm′ō-)
n.
  1. The condition of having identical genes at one or more loci in homologous chromosome segments.
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homozygous

(hō′mō-zīgəs, -mə-, hŏm′ə-)
adj.
  1. Having the same alleles at one or more gene loci on homologous chromosome segments.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

homozygosity in Science

homozygous

[hō′mō-zīgəs]
  1. Relating to a cell that has two identical alleles for a particular trait at corresponding positions on homologous chromosomes. Compare heterozygous.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.