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.

1890–95; oo- + -cyte

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World English Dictionary
oocyte (ˈəʊəˌsaɪt)
an immature female germ cell that gives rise to an ovum after two meiotic divisions

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

1895, from oo- + -cyte (see cyto-).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

oocyte o·o·cyte (ō'ə-sīt')
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.
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American Heritage
Science Dictionary
oocyte   (ō'ə-sīt')  Pronunciation Key 
A diploid cell that undergoes meiosis to form eggs.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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