Pronunciation IPA (key): /ˈbriːdə(r)/ Audio (AU)(file) Noun Singular breeder Plural breeders (countable) A breeder is a person who breeds plants or animals. I met a plant breeder at the seedling farm. (countable) A breeder is an animal kept for breeding. The champion bull was kept at the farm as a breeder. (countable) (slang) A breeder is a person attracted to members of the opposite sex. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads