ovum

[oh-vuhm]
noun, plural ova [oh-vuh] .
1.
Cell Biology.
a.
the female reproductive cell or gamete of animals, which is capable of developing, usually only after fertilization, into a new individual.
b.
the female reproductive cell or gamete of plants.
2.
Architecture. an oval ornament, as in an egg-and-dart molding.

Origin:
1700–10; < Latin ōvum egg1; cognate with Greek ōión

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To Ovum
Collins
World English Dictionary
ovum (ˈəʊvəm)
 
n , pl ova
an unfertilized female gamete; egg cell
 
[from Latin: egg]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

ovum
(pl. ova), 1706, from L. ovum "egg," cognate with Gk. oon, O.N. egg, O.E. æg, all from PIE base *owyo-/*oyyo- "egg" (see egg).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

ovum o·vum (ō'vəm)
n. pl. o·va (ō'və)
The female reproductive cell or gamete; egg.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
ovum   (ō'vəm)  Pronunciation Key 
Plural ova
The mature reproductive cell of female animals, produced in the ovaries. See more at egg.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Britannica
Encyclopedia

ovum

in human physiology, single cell released from either of the female reproductive organs, the ovaries, which is capable of developing into a new organism when fertilized (united) with a sperm cell

Learn more about ovum with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
About every month after menstruation starts, an ovary releases an egg, called an ovum.
The ovum remains centered within the jelly so that its upper surface lies slightly below the plane of the water surface.
Image for Ovum
Synonyms
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature