: 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 alsobreeder reactor
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Originally bred as a fighting dog, the AKC says responsible breeders now produce sweet-natured, extremely loyal and family-oriented dogs, but advises that their fighting instinct still lies within, and the breed may not do well at dog parks or as part of a home with multiple male dogs.—Rachael O'Connor, MSNBC Newsweek, 17 Sep. 2025 Most fisheries biologists would point to usual suspects like not enough eggs, but Waldman cites decent numbers of 10-to 20-pound fish which tend to be the breeders.—Christine Peterson, Outdoor Life, 17 Sep. 2025 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 See All Example Sentences for breeder
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