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Y chromosome

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noun Genetics.
a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome.
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Compare X chromosome.

Origin of Y chromosome

First recorded in 1920–25

Words nearby Y chromosome

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Y chromosome in a sentence

British Dictionary definitions for Y chromosome

Y-chromosome

noun
the sex chromosome that occurs as one of a pair with the X-chromosome in the diploid cells of the males of many animals, including humansCompare X-chromosome
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

Scientific definitions for Y chromosome

Y-chromosome

The sex chromosome that is paired with an X-chromosome in males. Most of the genes on the X-chromosome determine physical attributes associated with males, such as the development of testes. See more at sex chromosome. See Note at sex.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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