[ bree-der ]
/ ˈbri dər /


an animal, plant, or person that produces offspring or reproduces.
a person who raises animals or plants primarily for breeding purposes.
Also called breeder reactor. Energy. a nuclear reactor in which more fissile material is produced than is consumed.
Slang: Disparaging and Offensive. a contemptuous term used by gays to refer to a heterosexual.
Slang: Disparaging and Offensive. a contemptuous term used especially by child-free people to refer to a biological parent.

Nearby words

  1. breechloader,
  2. breechloading,
  3. breed,
  4. breed of cat,
  5. breed's hill,
  6. breeder reactor,
  7. breeding,
  8. breeding ground,
  9. breeks,
  10. breen

Origin of breeder

First recorded in 1525–35; breed + -er1

Related formsnon·breed·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for breeder


/ (ˈbriːdə) /


a person who breeds plants or animals
something that reproduces, esp to excessrabbits are persistent breeders
an animal kept for breeding purposes
a source or causea breeder of discontent
short for breeder reactor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for 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