1. Sociable aquatic animal widely distributed along streams and lake borders in North America
   - Lutra canadensis

Derived forms: river otters

Type of: otter

Encyclopedia: River otter

• spectrographic
• gradable opposition
• gradate
• gradation
• gradational
• gradatory
• grade
• grade crossing
• grade insignia
• grade point
• grade point average
• grade school
• grade separation
• grade-appropriate
• grade-constructed
• graded
• grader
• gradient
• grading
• gradual
• gradualism
• graduality
• gradually
• gradualness
• graduand