oo-

1.
a combining form meaning “egg,” used in the formation of compound words:
oogamous.
Origin
< Greek ōio-, combining form of ōión egg1
British Dictionary definitions for oo-

oo-

combining form
1.
egg or ovum: oosperm
Word Origin
from Greek ōionegg1
Word Origin and History for oo-

word-forming element meaning "egg, eggs," from Greek oon "egg," cognate with Latin ovum, Old Norse egg (see egg (n.)).

oo- in Medicine

oo- pref.
Egg; ovum: oogenesis.