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

The court order comes after the breeder already voluntarily surrendered more than 800 chinchillas to animal welfare organizations. — CBS News, 4 Nov. 2026

Mahan knows many of the breeders and buyers personally and isn’t afraid to needle them to keep the bidding going. — Dana O’Neil, CNN Money, 30 Oct. 2026

Every win traces back to a farm in this state and a breeder who matched a mare with a stallion, then waited years to see the result reach the track. — Tk Kuegler, Baltimore Sun, 29 Oct. 2026

Plant breeders have been working for decades to develop new varieties for ever-shrinking gardens. — Kim Toscano, Southern Living, 29 Oct. 2026

Word History

First Known Use

1529, 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