noun, plural o·o·go·ni·a [oh-uh-goh-nee-uh] /ˌoʊ əˈgoʊ ni ə/, o·o·go·ni·ums. Biology.
Origin of oogonium
Examples from the Web for oogonia
The Peronosporaceae reproduce themselves sexually by means of antheridia and oogonia as described in Pythium.
Mycelium present; antheridia but no antherozoids; oogonia with one or more oospheres: Peronosporaceae, Saprolegniaceae.
De Bary has claimed for the oogonia in Cystopus and Peronospora a kind of fecundation which deserves mention here.Fungi: Their Nature and Uses|Mordecai Cubitt Cooke
Sexual reproduction by oogonia and antheridia; asexual reproduction by zoospores or conidia.
These escape and float passively away when the wall of the oogonia ruptures.The Sea Shore|William S. Furneaux