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giant otter

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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.
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Origin of giant otter

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