tetra
noun
1.
brightly colored tropical freshwater fishes
Origin
From translingual Tetragonopterus, an obsolete genus that included these fish, ultimately from Ancient Greek τετράγωνος (tetrágōnos, “square, quadrilateral”) + πτερόν (pterón, “wing, fin”).
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.