pl. -·nia or -·ni·ums
- the female reproductive organ in certain algae and fungi, consisting of a large cell in which the eggs (oospheres) are developed
- Embryology any of the cells from which the oocytes derive
Origin of oogoniumModern Latin ; from oo- + -gonium
nounpl. o·o·go·ni·a or o·o·go·ni·ums
- Any of the cells that give rise through mitosis to the oocytes and are found in the ovaries of vertebrates.
- A female reproductive structure in certain thallophytes and in oomycetes, usually a rounded cell or sac containing one or more oospheres.
Origin of oogoniumoo– + New Latin gonium, cell (from Greek gonos, seed; see gono–).