: 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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Molten-salt breeder reactors are the most viable designs for thorium fuel, says Charles Forsberg, a nuclear scientist at MIT.—Emily Waltz, IEEE Spectrum, 30 Dec. 2024 Last year, the entire breeder flock of 6,600 pheasants at Reynolds Farm had to be killed because of an outbreak of avian flu.—Corey Kilgannon, New York Times, 29 Dec. 2024 Interest in breeder reactors waned after the 1960s as the available global uranium supply increased and scientists developed more efficient enrichment methods.—Eli Wizevich, Smithsonian Magazine, 20 Dec. 2024 Rose breeder Jackson & Perkins recommends winterizing roses in USDA Plant Hardiness Zones 7 and cooler, which includes the Middle and Upper South.—Brandee Gruener, Southern Living, 18 Dec. 2024 See all Example Sentences for breeder
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