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A thick-walled fungus spore that develops from a female gamete either through fertilization or parthenogenesis in an oogonium.
Farlex Partner Medical Dictionary © Farlex 2012
A thick-walled zygote developed from a fertilized oosphere, especially in an oomycete.
o′o·spor′ic (-spôr′ĭk, -spŏr′-) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
oospore(ō′ō-spor) [″ + sporos, seed]
A spore formed by the union of opposite sexual elements.
Medical Dictionary, © 2009 Farlex and Partners
oosporethe thick-walled spore found, for example, in some fungi, and arising from the fertilization of the OOSPHERE derived from an OOGONIUM.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005