n. pl. otter or ot·ters
1. Any of various aquatic or semiaquatic carnivorous mammals of the mustelid subfamily Lutrinae, having webbed feet and dense, dark brown fur.
2. The fur of one of these animals.
[Middle English oter, from Old English otor; see wed-1 in the Appendix of Indo-European roots.]
(click for a larger image)otter
Asian small-clawed otterAonyx cinerea
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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