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ovulation

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ov⋅u⋅late

[ov-yuh-leyt, oh-vyuh-leyt-]
–verb (used without object), -lat⋅ed, -lat⋅ing. Biology.
to produce and discharge eggs from an ovary or ovarian follicle.

Origin:
1860–65; ovule + -ate 1


ov⋅u⋅la⋅tion, noun
ov⋅u⋅la⋅to⋅ry [ov-yuh-luh-tawr-ee, -tohr-ee, oh-vyuh-] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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o·vu·late   (ō'vyə-lāt', ŏv'yə-)   
intr.v.   o·vu·lat·ed, o·vu·lat·ing, o·vu·lates
To produce ova; discharge eggs from the ovary.

[From ovule.]
o'vu·la'tion n., o'vu·la·to'ry (-lə-tôr'ē, -tōr'ē) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

ovulation [(ov-yuh-lay-shuhn, oh-vyuh-lay-shuhn)]

The periodic release of an ovum from the ovaries (usually from only one ovary). After the ovum is released, it travels into the fallopian tube, and from there is moved to the uterus. Ovulation generally happens approximately two weeks into the menstrual cycle.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

ovulation 
1848, from Mod.L. ovulum (see ovule). Ovulate is an 1888 back-formation.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: ovu·la·tion
Pronunciation: "äv-y&-'lA-sh&n also "Ov-
Function: noun
: the discharge of a mature ovum from theovary —ovu·late /'äv-y&-"lAt also 'Ov-/ intransitive verb -lat·ed; -lat·ing
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

ovulate o·vu·late (ō'vyə-lāt', ŏv'yə-)
v. o·vu·lat·ed, o·vu·lat·ing, o·vu·lates
To produce ova; discharge eggs from the ovary.

ovulation o·vu·la·tion (ō'vyə-lā'shən, ŏv'yə-)
n.
The discharge of an ovum from the ovary.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

ovulation

release of a mature egg from the female ovary; the release enables the egg to be fertilized by the male sperm cells. Normally, in humans, only one egg is released at one time; occasionally, two or more erupt during the menstrual cycle. The egg erupts from the ovary on the 14th to 16th day of the approximately 28-day menstrual cycle. If not fertilized, the egg is passed from the reproductive tract during menstrual bleeding, which starts about two weeks after ovulation. Occasionally, cycles occur in which an egg is not released; these are called anovulatory cycles.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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