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heterozygous

[het-er-uh-zahy-guh s]
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adjective Biology.
  1. having dissimilar pairs of genes for any hereditary characteristic.
  2. of or relating to a heterozygote.
Also het·er·o·zy·got·ic [het-uh-roh-zahy-got-ik] /ˌhɛt ə roʊ zaɪˈgɒt ɪk/.

Origin of heterozygous

1900–05; hetero- + Greek zygós, adj. derivative of zygón yolk; see -ous
Related formshet·er·o·zy·gos·i·ty [het-uh-roh-zahy-gos-i-tee] /ˌhɛt ə roʊ zaɪˈgɒs ɪ ti/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for heterozygosity

heterozygous

adjective
  1. genetics (of an organism) having different alleles for any one geneheterozygous for eye colour Compare homozygous
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 heterozygosity

heterozygous

adj.

1889, from heterozygote, from hetero- + zygote.

Online Etymology Dictionary, © 2010 Douglas Harper

heterozygosity in Medicine

heterozygosity

(hĕt′ə-rō-zī-gŏsĭ-tē)
n.
  1. The state of being heterozygous.

heterozygous

(hĕt′ər-ə-zīgəs)
adj.
  1. Having different alleles at one or more corresponding chromosomal loci.
  2. Of or relating to a heterozygote.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

heterozygosity in Science

heterozygous

[hĕt′ər-ə-zīgəs]
  1. Relating to a cell that has two different alleles at corresponding positions on homologous chromosomes. Compare homozygous.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.