Definition of "oospore" [o•ö•spore]

• A fertilized female cell or zygote, especially one with thick chitinous walls, developed from a fertilized oosphere. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Last one there's a rotten egg, and as if being a moldy oospore weren't enough, they'll also miss out on a potentially rich stream of revenue from the portable video-palooza."
• "After being thus fertilized the contents of the sporangium acquire a peculiar oily appearance, of a beautiful emerald color, an exceedingly tough but transparent envelope is secreted, and thus is constituted the fully developed oospore, the beginner of a new generation of the plant."
• "Its brilliant hue has faded and changed to a reddish brown, but after a rest of about three months (according to Pringsheim, who seems to be the only one who has ever followed the process of oospore formation entirely through), the spore suddenly assumes its original vivid hue and germinates into a young"