the producing of offspring.
the improvement or development of breeds of livestock, as by selective mating and hybridization.
Horticulture. the production of new forms by selection, crossing, and hybridizing.
training; nurture: He is a man of good breeding.
the result of upbringing or training as shown in behavior and manners; manners, especially good manners: You can tell when a person has breeding.
Energy. the production in a nuclear reactor of more fissile material than is consumed.

1250–1300; Middle English; see breed, -ing1

nonbreeding, adjective, noun Unabridged


verb (used with object), bred, breeding.
to produce (offspring); procreate; engender.
to produce by mating; propagate sexually; reproduce: Ten mice were bred in the laboratory.
to cause to reproduce by controlled pollination.
to improve by controlled pollination and selection.
to raise (cattle, sheep, etc.): He breeds longhorns on the ranch.
to cause or be the source of; engender; give rise to: Dirt breeds disease. Stagnant water breeds mosquitoes.
to develop by training or education; bring up; rear: He was born and bred a gentleman.
Energy. to produce more fissile nuclear fuel than is consumed in a reactor.
to impregnate; mate: Breed a strong mare with a fast stallion and hope for a Derby winner.
verb (used without object), bred, breeding.
to produce offspring: Many animals breed in the spring.
to be engendered or produced; grow; develop: Bacteria will not breed in alcohol.
to cause the birth of young, as in raising stock.
to be pregnant.
Genetics. a relatively homogenous group of animals within a species, developed and maintained by humans.
lineage; stock; strain: She comes from a fine breed of people.
sort; kind; group: Scholars are a quiet breed.
Disparaging and Offensive. half-breed ( def 2 ).

before 1000; Middle English breden, Old English brēdan to nourish (cognate with Old High German bruotan, German brüten); noun use from 16th century

breedable, adjective
overbreed, verb (used with object), overbred, overbreeding.
rebreed, verb, rebred, rebreeding.
subbreed, noun

1, 2. beget, bear, generate. 5. promote, occasion, foster, produce, induce, develop. 14. family, pedigree, line. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
breed (briːd)
vb , breeds, breeding, bred
1.  to bear (offspring)
2.  (tr) to bring up; raise
3.  to produce or cause to produce by mating; propagate
4.  to produce and maintain new or improved strains of (domestic animals and plants)
5.  to produce or be produced; generate: to breed trouble; violence breeds in densely populated areas
6.  a group of organisms within a species, esp a group of domestic animals, originated and maintained by man and having a clearly defined set of characteristics
7.  a lineage or race: a breed of Europeans
8.  a kind, sort, or group: a special breed of hatred
[Old English brēdan, of Germanic origin; related to brood]

breeding (ˈbriːdɪŋ)
1.  the process of bearing offspring; reproduction
2.  the process of producing plants or animals by sexual reproduction
3.  the result of good training, esp the knowledge of correct social behaviour; refinement: a man of breeding
4.  a person's line of descent: his breeding was suspect
5.  physics a process occurring in a nuclear reactor as a result of which more fissionable material is produced than is used up

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. bredan "bring young to birth, carry," also "cherish, keep warm," from W.Gmc. *brodjan (cf. O.H.G. bruoten, Ger. brüten "to brood, hatch"), from *brod- "fetus, hatchling," from PIE *bhreue- "burn, heat" (see brood). Original notion of the word was incubation, warming
to hatch. Breeding "good manners" is from 1590s.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
breed   (brēd)  Pronunciation Key 
  1. To produce or reproduce by giving birth or hatching.

  2. To raise animals or plants, often to produce new or improved types.

Noun   A group of organisms having common ancestors and sharing certain traits that are not shared with other members of the same species. Breeds are usually produced by mating selected parents.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
It's remarkable what centuries of plant breeding can do.
Noisettes also have much of the same musk rose hybrid breeding.
The next good quality belonging to a gentleman, is good breeding.
It shall serve among wits of no higher breeding than thine.
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