: an individual or strain heterozygous for one specified gene
monohybrid adjective

Word History

First Known Use

1902, in the meaning defined above

Time Traveler
The first known use of monohybrid was in 1902

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Cite this Entry

“Monohybrid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monohybrid. Accessed 7 Jul. 2026.

Medical Definition

: an individual or strain heterozygous for one specified gene
monohybrid adjective
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