- the only member (Myocastor coypus) of a family (Myocastoridae) of South American water-dwelling rodents with webbed feet and a long, almost hairless tail; coypu
- its short-haired, soft, brown fur, often dyed to look like beaver
Origin of nutriaSpanish ; from Classical Latin lutra, otter, altered (with l- after lutum, mire) ; from Indo-European an unverified form udros, water animal: see otter
nounpl. nutria or nu·tri·as
- A large semiaquatic rodent (Myocastor coypus) native to South America, having webbed feet and a long tail. It is widely raised for fur and has formed wild populations especially in the southern United States.
- The light brown fur of the nutria. In both senses also called coypu.
Origin of nutriaAmerican Spanish, otter, coypu, from Spanish, otter, from Old Spanish, from Latin lutra (probably influenced by Greek enudris, otter); see wed-1 in Indo-European roots.
- (chiefly North America) The coypu, Myocastor coypus.