oo-


Also found in: Medical.

oo-

(word root) egg
Examples of words with the root oo-: oocyte
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

oo-

pref.
Egg; ovum: oogenesis.

[Greek ōio-, from ōion, egg; see awi- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

oo-

or

oö-

combining form
egg or ovum: oosperm.
[from Greek ōion egg1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

oo-

a combining form meaning “egg”: oogamete.
[< Greek ōio-, comb. form of ōión egg1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.