tetra Hear it!

tetra definition

tetra (te′trə)

noun

any of a number of brightly colored, tropical American, characin fishes, often kept in aquariums

Etymology: contr. < ModL Tetragonopterus, old genus designation < tetragonum, tetragon + -pterus, -pterous

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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