Breeder

noun

1. A person who breeds plants or animals (professionally).
2. A person who has had or who is capable of having children; a person who is focussed on the rearing of their own children.
3. 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."

4. Ellipsis of breeder reactor; a type of nuclear reactor that creates material suitable for the production of atomic weapons.
5. 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.