/ot"euhr/ , n. , pl. otters , ( esp. collectively ) otter .
1. any of several aquatic, furbearing, weasellike mammals of the genus Lutra and related genera, having webbed feet and a long, slightly flattened tail.
2. the fur of an otter.
[ bef. 900; ME otter, oter, OE otor, ottor; c. D, G otter; cf. Gk hýdra water serpent (see HYDRA), Skt udra- otter; akin to WATER ]