You searched for: “oosphere
1. An unfertilized female reproductive cell in algae and fungi.
2. A large non-motile female gamete or egg cell, formed in an oogonium and ready for fertilization.

Oogonium is a female reproductive structure in certain thallophytes (algae, fungi, and lichens), usually a rounded cell or sac containing one or more oospheres.

This entry is located in the following units: oo- (page 4) sphero-, spher-, -sphere- (page 10)