[ot.ter] n, pl otters also otter [ME oter, fr. OE otor; akin to OHG ottar otter, Gk hydor water--more at water] (bef. 12c) 1: any of various largely aquatic carnivorous mammals (as genus Lutra or Enhydra) that are related to the weasels and minks and usu. have webbed and clawed feet and dark brown fur
2: the fur or pelt of an otter