noun Cell Biology.

an immature egg cell of the animal ovary; in humans, one oocyte matures during the menstrual cycle, becoming an ootid and then an ovum, while several others partially mature and then disintegrate.

Origin of oocyte

First recorded in 1890–95; oo- + -cyte
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for oocyte



an immature female germ cell that gives rise to an ovum after two meiotic divisions
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

Word Origin and History for oocyte

1895, from oo- + -cyte (see cyto-).

Online Etymology Dictionary, © 2010 Douglas Harper

oocyte in Medicine




A cell from which an egg or ovum develops by meiosis; a female gametocyte.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

oocyte in Science



A diploid cell that undergoes meiosis to form eggs.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.