oogonium

[ oh-uh-goh-nee-uhm ]

/ ˌoʊ əˈgoʊ ni əm /

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noun, plural o·o·go·ni·a

[oh-uh-goh-nee-uh], /ˌoʊ əˈgoʊ ni ə/, o·o·go·ni·ums.Biology.

one of the undifferentiated germ cells giving rise to oocytes.

the one-celled female reproductive organ in certain thallophytes, usually a more or less spherical sac containing one or more eggs.

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Origin of oogonium

From New Latin, dating back to 1865–70; see origin at oo-, -gonium

OTHER WORDS FROM oogonium

o·o·go·ni·al, adjective

Words nearby oogonium

oof, oogamete, oogamy, OO gauge, oogenesis, oogonium, ooh, ookinesis, Ookpik, oolachan, oolite

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use oogonium in a sentence

It is seldom that more than one antheridium applies itself to an oogonium.
Fungi: Their Nature and Uses|Mordecai Cubitt Cooke
Mycelium present, antheridia with antherozoids, oogonium with single oosphere: Monoblepharidaceae.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3|Various
Oogonium with the central uninucleate oosphere and the fertilizing tube (a) of the antheridium which introduces the male nucleus.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3|Various

British Dictionary definitions for oogonium

oogonium

/ (ˌəʊəˈɡəʊnɪəm) /

noun plural -nia (-nɪə) or -niums

an immature female germ cell forming oocytes by repeated divisions

a female sex organ of some algae and fungi producing female gametes (oospheres)

Derived forms of oogonium

oogonial, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for oogonium

oogonium

[ ō′ə-gō′nē-əm ]

Plural oogonia oogoniums

A female reproductive structure in certain algae and fungi. It is usually a rounded cell or sac containing one or more oospheres.

A cell that arises from a primordial germ cell and differentiates into an oocyte in the ovary of female animals.