noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An immature ovarian egg within a developing fetus.
2. 2
   A sac (the female gametangium) containing oospheres in algae or fungi.

Synonyms

All synonyms

oogoneoogone

Etymology

From oo- + -gonium.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.