—breedable, adj.v.t.1. to produce (offspring); procreate; engender.2. to produce by mating; propagate sexually; reproduce: Ten mice were bred in the laboratory.3. Hort.a. to cause to reproduce by controlled pollination.b. to improve by controlled pollination and selection.5. to cause or be the source of; engender; give rise to: Dirt breeds disease. Stagnant water breeds mosquitoes.6. to develop by training or education; bring up; rear: He was born and bred a gentleman.7. Energy. to produce more fissile nuclear fuel than is consumed in a reactor.8. to impregnate; mate: Breed a strong mare with a fast stallion and hope for a Derby winner.v.i.9. to produce offspring: Many animals breed in the spring.10. to be engendered or produced; grow; develop: Bacteria will not breed in alcohol.11. to cause the birth of young, as in raising stock.12. to be pregnant.n.13. Genetics. a relatively homogenous group of animals within a species, developed and maintained by humans.14. lineage; stock; strain: She comes from a fine breed of people.15. sort; kind; group: Scholars are a quiet breed.16. Offensive. half-breed (def. 2).[bef. 1000; ME breden, OE bredan to nourish (c. OHG bruotan, G brüten); n. use from 16th century]Syn. 1, 2. beget, bear, generate. 5. promote, occasion, foster, produce, induce, develop. 14. family, pedigree, line.
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