breed·​er | \ ˈbrē-dər How to pronounce breeder (audio) \

Definition of breeder

: one that breeds: such as
a : an animal or plant kept for propagation
b : 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 also breeder reactor

Examples of breeder in a Sentence

Recent Examples on the Web

Last September, wealthy horse buyers, breeders and trainers from around the world descended on Lexington, Ky., to spend more than $377 million at the most important annual sale in the global thoroughbred industry. Miriam Gottfried, WSJ, "Controversy Undermines Integrity of Auction Where the Rich Buy Racehorses," 22 Mar. 2019 Queen Elizabeth, a longtime dog breeder and owner, laid her last corgi to rest this fall. Michaela Bechler, Vogue, "How the Royal Family Influenced the Most Popular Dog Names of 2018," 17 Dec. 2018 SUBSCRIBE TODAY Ewing, a long-time Kansas City-area breeder and trainer of German shepherds, heard about Bernet's arrest in 2015 on animal cruelty charges in Johnson County after authorities found starving dogs that had turned to cannibalism. Tony Rizzo, kansascity, "How 'The Ozark 14' — owned by JoCo woman jailed in animal cruelty case — were saved | The Kansas City Star," 25 Apr. 2018 Ken and Sarah Ramsey The husband-wife duo from Eastern Kentucky are among the most prolific thoroughbred owners and breeders of all-time. Justin Sayers, The Courier-Journal, "Bob Baffert, Bob Beatty inducted to Kentucky Athletic Hall of Fame," 27 June 2018 Violations of breeders not identified by name were instead shared by location. Kaitlyn Schwers, kansascity, "Missouri is the 'horrible' puppy mills capital, report says. Many are listed by name | The Kansas City Star," 16 May 2018 The most common scams involve breeders claiming that their dogs are purebreds without offering paperwork showing that the dogs have been registered with the AKC. Liz Cantrell, Town & Country, "How Queen Elizabeth Was Fooled by a Fake Purebreed Dog," 18 Sep. 2018 The internet was pretty excited about the Biden family’s new addition too, with many praising them for opting for a shelter pet instead of a dog from a breeder. Kara Nesvig, Teen Vogue, "Joe Biden Adopts German Shepherd From Delaware Humane Association," 18 Nov. 2018 Julie Bernet, a would-be breeder of expensive dogs imported from Europe, has been charged with multiple counts of animal cruelty. Tony Rizzo, kansascity, "Starving dogs turned to cannibalism. Their Johnson County owner is jailed — again | The Kansas City Star," 25 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'breeder.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of breeder

1531, in the meaning defined above

Keep scrolling for more

Learn More about breeder

Statistics for breeder

Last Updated

27 Mar 2019

Look-up Popularity

Time Traveler for breeder

The first known use of breeder was in 1531

See more words from the same year

Keep scrolling for more

More Definitions for breeder



Medical Definition of breeder

: one that breeds: as
a : an animal or plant kept for propagation
b : one engaged in the breeding of a specified organism

Keep scrolling for more

More from Merriam-Webster on breeder

Rhyming Dictionary: Words that rhyme with breeder

Spanish Central: Translation of breeder

Nglish: Translation of breeder for Spanish Speakers

Britannica English: Translation of breeder for Arabic Speakers

Comments on breeder

What made you want to look up breeder? Please tell us where you read or heard it (including the quote, if possible).


marked by a state of overwhelming emotion

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!