o·o·go·ni·um (   -g n -m)n. pl. o·o·go·ni·a (-n -) or o·o·go·ni·ums 1. A cell that arises from a primordial germ cell and differentiates into an oocyte in the ovary. 2. A female reproductive structure in certain thallophytes, usually a rounded cell or sac containing one or more oospheres. [oo- + New Latin gonium, cell (from Greek gonos, seed; see gono-).] o o·goni·al (-n-l) adj. |
oogonium [ˌəʊəˈgəʊnɪəm]
n pl -nia [-nɪə], -niums
1. (Life Sciences & Allied Applications / Biology) an immature female germ cell forming oocytes by repeated divisions
2. (Life Sciences & Allied Applications / Botany) a female sex organ of some algae and fungi producing female gametes (oospheres)
oogonial adj
| oogonium (-gn-m) Plural oogonia or oogoniums 1. A female reproductive structure in certain algae and fungi. It is usually a rounded cell or sac containing one or more oospheres. 2. A cell that arises from a primordial germ cell and differentiates into an oocyte in the ovary of female animals. |
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