Any of the caviomorph rodents of family Abrocomidae.

Any of certain caviomorph rodents of the family Echimyidae, especially of genus Proechimys, that resemble rats and have stiff, pointed hairs, or spines.

(archaic) mole rat

Any member of the rodent tribe Sigmodontini, that build their nests from cotton, and can damage cotton crops.

mole rat

(historical) An enclosed space into which rats are placed to be killed by a dog for sport.

A blood sport involving the setting of dogs upon rats in a confined space.

(historical) A member of a Gwich'in (Athabascan) tribe dwelling near Fort Yukon, Alaska.

Any of many medium to large colubrid constrictors of a kind found through a great portion of the Northern Hemisphere, primarily feeding on rodents and birds.

(UK, military, slang) A ration pack.