breeder reactor

breeder

[bree-der]
noun
1.
an animal, plant, or person that produces offspring or reproduces.
2.
a person who raises animals or plants primarily for breeding purposes.
3.
Also called breeder reactor. Energy. a nuclear reactor in which more fissile material is produced than is consumed.

Origin:
1525–35; breed + -er1

nonbreeder, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
breeder (ˈbriːdə)
 
n
1.  a person who breeds plants or animals
2.  something that reproduces, esp to excess: rabbits are persistent breeders
3.  an animal kept for breeding purposes
4.  a source or cause: a breeder of discontent
5.  short for breeder reactor

breeder reactor
 
n
Compare converter reactor See also fast-breeder reactor a type of nuclear reactor that produces more fissionable material than it consumes

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

breeder
1570s, "one who produces or originates," agent noun from breed (v.). Meaning "one who breeds cattle" or some other animal is recorded from 1530s. Of nuclear reactors, from 1948. As a scornful homosexual term for "heterosexual person," attested from 1986.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
breeder reactor   (brē'dər)  Pronunciation Key 
A nuclear reactor that is used to create fissionable material (such as plutonium-239) by exposing nonfissionable material (such as uranium-238) to radiation. The source of the radiation is usually some other fissionable material. Breeder reactors produce more fissionable material than they use up.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

breeder reactor definition


A nuclear reactor in which plutonium and other materials are produced as a by-product.

Note: Breeder reactors are designed to produce more fuel than they consume.
Note: The development of the breeder reactor has been stopped in the United States, but continues to be pursued in Europe and Japan.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

breeder reactor

nuclear reactor that produces more fissionable material than it consumes to generate energy. This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. Whereas a conventional nuclear reactor (q.v.) can use only the readily fissionable but scarce isotope uranium-235 for fuel, a breeder reactor employs either uranium-238 or thorium, of which sizable quantities are available. Uranium-238, for example, accounts for more than 99 percent of all naturally occurring uranium. In breeders, approximately 70 percent of this isotope can be utilized for power production. Conventional reactors, in contrast, can extract less than one percent of its energy.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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