nounpl. -·rats· or -·rat·
- any of various American rodents (family Cricetidae) living in water and having glossy brown fur, a long tail, webbed hind feet, and a musklike odor
- its fur
nounpl. muskrat, or musk·rats
- A large semiaquatic rodent (Ondatra zibethicus) native to North America and naturalized in Eurasia, having a dense brown coat and musk glands under its long, scaly tail. Also called musquash . Also called water rat .
- The fur of this rodent.