uniparental

adjective

uni·​pa·​ren·​tal ˌyü-ni-pə-ˈren-tᵊl How to pronounce uniparental (audio)
: having, involving, or derived from a single parent
specifically : involving or being inheritance in which all or part of an offspring's genotype (such as both members of a pair of homologous chromosomes) is derived from a single parent
uniparentally adverb

Examples of uniparental in a Sentence

Recent Examples on the Web
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Finally, the authors note that uniparental lineages (mtDNA and Y) seem to imply that the last common ancestors of the ANI with other sampled West Eurasian groups dates to ~10,000 years before the present. Razib Khan, Discover Magazine, 8 Aug. 2013

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of uniparental was in 1889

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Cite this Entry

“Uniparental.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uniparental. Accessed 9 Sep. 2025.

Medical Definition

uniparental

adjective
uni·​pa·​ren·​tal ˌyü-ni-pə-ˈrent-ᵊl How to pronounce uniparental (audio)
: having, involving, or derived from a single parent
specifically : involving or being inheritance in which an offspring's complete genotype or all copies of one or more genes, chromosome parts, or whole chromosomes are derived from a single parent
uniparental disomy
uniparentally adverb
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