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ovum

American  
[oh-vuhm] / ˈoʊ vəm /

noun

  • ova
    plural
  1. Cell Biology.

    1. the female reproductive cell or gamete of animals, which is capable of developing, usually only after fertilization, into a new individual.

    2. the female reproductive cell or gamete of plants.

  2. Architecture. an oval ornament, as in an egg-and-dart molding.


ovum British  
/ ˈəʊvəm /

noun

  1. an unfertilized female gamete; egg cell

"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

Other Word Forms

Noun Inflected Forms


Etymology

Origin of ovum

First recorded in 1700–10; from Latin ōvum egg 1; cognate with Greek ōión


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Vocabulary lists containing ovum

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Just as the human being emerges from the fertilized ovum, the creation of the possible is a natural gift and phenomenon we have been given as human beings.

From Salon ● Jan. 20, 2025

The second was what's called a "blighted ovum" where a gestational sac was found, but no embryo was developing.

From BBC ● Oct. 22, 2021

Let us take a ride, For truly, sir, thy life is incomplete ’Til viridescent ovum thou hast tried Together with a slice of glaucous meat!

From Washington Post ● May 16, 2019

When a sperm and ovum combine during fertilization, the result is a single cell with a full set of genes, called the zygote.

From Slate ● Sep. 18, 2018

Lanning considered, “If you had all your equipment—the brain, the skeleton, the ovum, the proper hormones and radiations—say, two months.”

From "I, Robot" by Isaac Asimov

A female has a system “developed to produce ova” while a male has a system “developed to fertilize” that ova.

From Washington Times ● Jun. 26, 2023

The bill defines female as having XX chromosomes, and a reproductive and endocrine system that produces or would produce ova, or eggs.

From Seattle Times ● May 22, 2023

There are those, politicians, pundits and even a few scientists, who maintain that whether our bodies make ova or sperm are all we need to know about sex.

From Scientific American ● May 1, 2023

But the fact that the woman produced ova did not necessarily mean she was a source of life.

From Salon ● Oct. 23, 2022

Ovarian ova found in April ranged in length from 23 to 35 millimeters.

From Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia) by Ray D. Burkett

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