First Known Use: 1931
Dictionary
tetra
noun tet·ra \ˈte-trə\
Definition of TETRA
: any of numerous small often brightly colored South American characin fishes often bred in tropical aquariums
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Origin of TETRA
by shortening from New Latin Tetragonopterus, former genus name, from Late Latin tetragonum quadrangle + Greek pteron wing — more at tetragonal, feather
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