1. (noun) bulky nocturnal burrowing rodent of uplands of the Pacific coast of North America; the most primitive living rodent

• mountain beaver
• sewellel

1. (noun) bulky nocturnal burrowing rodent of uplands of the Pacific coast of North America; the most primitive living rodent

• aplodontia
• genus aplodontia

1. (noun) bulky nocturnal burrowing rodent of uplands of the Pacific coast of North America; the most primitive living rodent

• gnawer
• rodent