- an animal or plant that produces offspring
- a person who breeds animals or plants
- breeder reactor
- A person who breeds animals or plants.
- An animal kept to produce offspring.
- Offensive Slang A heterosexual person.
- A source or cause: social injustice—a breeder of revolutions.
- A breeder reactor.
- A person who breeds plants or animals professionally.
- (gay slang, derogatory) A heterosexual; i.e. one whose sexual intercourse can lead to breeding.
- Since the breeders started coming here, you can never tell who likes cock.
- A type of nuclear reactor that creates material suitable for the production of atomic weapons. (See Wikipedia's article on fast breeder reactors.)
- (slang, derogatory) a person who has had or who is capable of having children; a person who is focussed on the rearing of their own children.
- (cellular automata) A pattern that exhibits quadratic growth by generating multiple copies of a secondary pattern, each of which then generates multiple copies of a tertiary pattern.