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.
Types Of October Magic® Camellia Ivory™ Camellia is part of the October Magic™ series produced by plant breeder Bobby Green in Mobile, Alabama. Kim Toscano, Southern Living, 1 Oct. 2025 Angus and Duke are waiting for fresh starts after they were saved from a backyard breeder. Simone Jasper, Miami Herald, 30 Sep. 2025 As a result, breeders are being flooded with requests online as videos rack up millions of views. Alina Hartounian, NPR, 29 Sep. 2025 Horse breeders and owners can also deduct their losses against any type of income, including capital gains and salary, according to Green. Hayley Cuccinello, CNBC, 25 Sep. 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 10 Oct. 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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