From WordNet (r) 3.0 (2006):
breed
n 1: a special variety of domesticated animals within a species;
"he experimented on a particular breed of white rats"; "he
created a new strain of sheep" [syn: breed, strain,
stock]
2: a special type; "Google represents a new breed of
entrepreneurs"
v 1: call forth [syn: engender, breed, spawn]
2: copulate with a female, used especially of horses; "The horse
covers the mare" [syn: breed, cover]
3: cause to procreate (animals); "She breeds dogs"
4: have young (animals) or reproduce (organisms); "pandas rarely
breed in captivity"; "These bacteria reproduce" [syn:
breed, multiply]