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

Brent Horvath, breeder and owner of Intrinsic Perennial Gardens in Hebron, Illinois, initially began breeding sedums for green roofs because their shallow roots work exceptionally well there. —Erica Browne Grivas, Midwest Living, 4 May 2026

The facility holds federal licenses as both a dog breeder and a research facility, and is accredited by AAALAC International, an organization that sets standards for the care of research animals. —Jeanine Santucci, USA Today, 30 Apr. 2026

Other Illinois breeders went on to produce the winners of world-class races. —Neil Milbert, Chicago Tribune, 29 Apr. 2026

On Friday, April 24, cattle breeder Santiago Barrero San Román was attacked by the bull at the San Marcos Festival in the remote southern Spanish town of Beas de Segura, according to El País, ABC and La Razón. —Gabrielle Rockson, PEOPLE, 27 Apr. 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