featherback

[ feth-er-bak ]
/ ˈfɛð ərˌbæk /

noun

any freshwater fish of the family Notopteridae, of Asia and western Africa, having a small, feathery dorsal fin and a very long anal fin extending from close behind the head to the tip of the tail.

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Origin of featherback

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020