breeder

noun

breed·​er ˈbrē-dər How to pronounce breeder (audio)
: one that breeds: such as
a
: an animal or plant kept for propagation
b
: one engaged in the breeding of a specified organism
c
: a nuclear reactor designed to produce more fissionable material than it uses as fuel

called also breeder reactor

Examples of breeder 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.
Both horses are sons of Tough Sunday and are owned by breeder Nick Alexander and trained by Phil D’Amato. Bill Center, San Diego Union-Tribune, 1 Aug. 2025 Worth came to K9s for Warriors as a puppy from a breeder and was sponsored by San Antonio real estate investor Robert Worth, which is where the dog gets his name. Nicole Villalpando, Austin American Statesman, 30 July 2025 Screenshots from a July 19 Reddit post about a man getting a golden retriever from a breeder after being denied multiple times from shelters. Liz O'Connell, MSNBC Newsweek, 28 July 2025 Plant breeders had discovered a genetic mutation that produced peanuts with plenty of monounsaturated fat, like the kind found in olive oil. New York Times, 24 July 2025 See All Example Sentences for breeder

Word History

First Known Use

1531, in the meaning defined above

Time Traveler
The first known use of breeder was in 1531

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Cite this Entry

“Breeder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/breeder. Accessed 7 Aug. 2025.

Medical Definition

breeder

noun
breed·​er
: one that breeds: as
a
: an animal or plant kept for propagation
b
: one engaged in the breeding of a specified organism

More from Merriam-Webster on breeder

Last Updated: - Updated example sentences
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