noun ot·ter \ˈä-tər\

: an animal that has dark brown fur and webbed feet with claws and that eats fish

plural otters also otter

Full Definition of OTTER

:  any of various largely aquatic carnivorous mammals (as genus Lutra or Enhydra) of the weasel family that usually have webbed and clawed feet and dark brown fur
:  the fur or pelt of an otter

Illustration of OTTER

Origin of OTTER

Middle English oter, from Old English otor; akin to Old High German ottar otter, Greek hydōr water — more at water
First Known Use: before 12th century
OTTER Defined for Kids


noun ot·ter \ˈä-tər\

Definition of OTTER for Kids

:  a web-footed animal that lives mostly in the water, feeds on fish, and has dark brown fur
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