Dictionary.com

Y chromosome

Save This Word!

noun Genetics.
a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome.
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?
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. 2022

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

Medical definitions for Y chromosome

Y-chromosome

n.
The sex chromosome associated with male characteristics, occurring with one X-chromosome in the male sex chromosome pair.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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.
FEEDBACK