hemizygous

adjective

hemi·​zy·​gous ˌhe-mi-ˈzī-gəs How to pronounce hemizygous (audio)
: having or characterized by one or more genes (as in a genetic deficiency or in an X chromosome paired with a Y chromosome) that have no allelic counterparts

Word History

First Known Use

circa 1921, in the meaning defined above

Time Traveler
The first known use of hemizygous was circa 1921

Dictionary Entries Near hemizygous

hemizygotic

hemizygous

hemline

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Cite this Entry

“Hemizygous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hemizygous. Accessed 28 Nov. 2024.

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Medical Definition

hemizygous

adjective
hemi·​zy·​gous -ˈzī-gəs How to pronounce hemizygous (audio)
: having or characterized by one or more genes (as in a genetic deficiency or in an X chromosome paired with a Y chromosome) that have no allelic counterparts
hemizygosity
-zī-ˈgäs-ə-tē How to pronounce hemizygous (audio)
noun
plural hemizygosities
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