Definitions for otterˈɒt ər

Random House Webster's College Dictionary

ot•terˈɒt ər(n.)(pl.)-ters; -ter.

any of several aquatic, furbearing, weasellike mammals of the genus Lutra and related genera, having webbed feet and a long, slightly flattened tail.

Princeton's WordNet

otter(noun)
the fur of an otter
otter(noun)
freshwater carnivorous mammal having webbed and clawed feet and dark brown fur

Kernerman English Learner's Dictionary

otter(noun)ˈɒt ər
a mammal with thick brown fur that lives in and near water

Wiktionary

otter(Noun)
Any aquatic or marine carnivorous mammal, member of the family Mustelidae, which also includes weasels, polecats, badgers, and others.
otter(Noun)
A hairy man with a slender physique, in contrast with a bear, who is more broadly set
Otter(ProperNoun)
A river whose source in the Blackdown Hills, Somerset, and which flows into Lyme Bay in English Channel.

Origin: From oter. Cognate with Old High German ottar, Old Slavic , and Ancient Greek ὕδρα (“Hydra”, “water snake”). More etymology under English water.