Fungal zygote

• A thick-walled sexual spore that develops from a fertilized oosphere in some algae and fungi

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Oospore \O"["o]*spore\, n. [Gr. w,'o`n an egg + ? a seed.] (Bot.) A special kind of spore resulting from the fertilization of an o["o]sphere by antherozoids. A fertilized o["o]sphere in the ovule of a flowering plant.

WordNet Word definitions in WordNet
n. a thick-walled sexual spore that develops from a fertilized oosphere in some algae and fungi

Wikipedia Word definitions in Wikipedia
An oospore is a thick-walled sexual spore that develops from a fertilized oosphere in some algae , fungi , and Oomycetes . In Oomycetes, oospores can also result from asexual reproduction, by apomixis .

Wiktionary Word definitions in Wiktionary
n. (context biology English) A fertilized female zygote, having thick chitinous walls, that develops from a fertilized oosphere in some algae and fungus