breeder

noun

breed·​er ˈbrē-dər 

: 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

And residents in Southwest Miami-Dade say many loose dogs are being abandoned by irresponsible breeders. —Amanda Rosa, Miami Herald, 8 Sep. 2025

One of the Zhdanov brothers’ business partners is a PhD plant geneticist and breeder. —Don Tse, Forbes.com, 6 Sep. 2025

The nonprofit conducts large-scale rescues of abused and neglected animals, including cases involving puppy mills, hoarding, dogfighting rings, and backyard breeders. —Meg Dunn, CNN Money, 5 Sep. 2025

Screenshots from an August 7 Instagram video of a dog breeder highlighting the different personalities between female and male puppies. —Liz O'Connell, MSNBC Newsweek, 19 Aug. 2025

Word History

First Known Use

1531, in the meaning defined above

Rhymes for breeder

• bleeder
• feeder
• leader
• lieder
• meader
• pleader
• reader
• reeder
• seeder
• weeder
• cheerleader
• proofreader

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