oogonium

American  

[oh-uh-goh-nee-uhm] / ˌoʊ əˈgoʊ ni əm /

noun

Biology.

plural

oogonia, oogoniums

1. one of the undifferentiated germ cells giving rise to oocytes.

2. 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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oogonium British  

/ ˌəʊəˈɡəʊnɪəm /

noun

1. an immature female germ cell forming oocytes by repeated divisions

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

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oogonium Scientific  

/ ō′ə-gō′nē-əm /

plural

oogonia

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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Other Word Forms

• oogonial adjective

Etymology

Origin of oogonium

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

Example Sentences

A diploid oogonium forms a haploid oocyte by the process of mitosis.

From Textbooks • Jun. 9, 2022

A haploid oogonium forms a diploid oocyte by the process of meiosis.

From Textbooks • Jun. 9, 2022

A haploid oogonium forms a haploid haploid oocyte by the process of meiosis.

From Textbooks • Jun. 9, 2022

In oogenesis, this germ cell is called an oogonium and forms during the embryological development of the individual.

From Textbooks • Apr. 25, 2013

It is presumable that here, as in the Algæ, the spermatozoids introduce themselves into the cavity of the oogonium, and unite with the gonospheres.

From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)