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giant otter

American

noun

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.

First recorded in 1970–75

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In Brazil's southern Pantanal, a rare pale giant otter feeds on a catfish.

From BBC • Mar. 25, 2026

They were shocked to discover a wild giant otter swimming in the river.

From NewsForKids.net • Mar. 7, 2024

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023