: development in which the embryo contains only maternal chromosomes due to activation of an egg by a sperm that degenerates without fusing with the egg nucleus

Examples of gynogenesis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Moreover, aquaculturists had previously used sperm from paddlefish to trigger gynogenesis in other sturgeon species and vice versa, and none of those experiments had ever produced crossbreeds. Quanta Magazine, 5 Aug. 2020 This new sturddlefish came into existence when the research team tried to breed more Russian sturgeons via gynogenesis, a type of asexual reproduction in which sperm is necessary but leaves no traces of its DNA behind. Daisy Hernandez, Popular Mechanics, 5 Apr. 2022

Word History

Etymology

gyno- + genesis, after androgenesis

Note: The term was introduced by the American biologist Edmund Beecher Wilson (1856-1939) in The Cell in Development and Heredity, third edition (New York: 1925), p. 460.

First Known Use

1925, in the meaning defined above

Time Traveler
The first known use of gynogenesis was in 1925

Browse Nearby Words

Cite this Entry

“Gynogenesis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gynogenesis. Accessed 7 Jul. 2026.

Medical Definition

gynogenesis

noun
: development in which the embryo contains only maternal chromosomes due to activation of an egg by a sperm that degenerates without fusing with the egg nucleus compare androgenesis

More from Merriam-Webster on gynogenesis

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!