giant otter

noun
  1. a large brown South American river otter, Pteronura brasiliensis, having a creamy chest patch and a long flat tail with a flanged border, hunted for its hide: now greatly reduced in number and endangered in some areas.

Origin of giant otter

First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018