Y chromosome

noun

Definition of Y chromosome

: a sex chromosome that is characteristic of male cells in species in which the male typically has two unlike sex chromosomes — compare x chromosome

First Known Use of Y chromosome

1911, in the meaning defined above

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Time Traveler for Y chromosome

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The first known use of Y chromosome was in 1911

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Cite this Entry

“Y chromosome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Y%20chromosome. Accessed 13 Aug. 2020.

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More Definitions for Y chromosome

Y chromosome

noun

English Language Learners Definition of Y chromosome

biology : a chromosome that is found with the X chromosome in the cells of male mammals and that is absent from the cells of female mammals

Y chromosome

noun
\ ˈwī- How to pronounce Y chromosome (audio) \

Medical Definition of Y chromosome

: a sex chromosome that is characteristic of male cells in species in which the male typically has two unlike sex chromosomes — compare x chromosome

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