Tetra Definition

tĕtrə
tetras
noun
Any of a number of brightly colored, tropical American, characin fishes, often kept in aquariums.
Webster's New World
prefix
Four.
Tetrode.
American Heritage
Containing four of a specified kind of atom, radical, or group.
Tetrachloride.
American Heritage

Forming compound words having the sense of "˜four'.

Wiktionary
affix
Four.
Tetrachord.
Webster's New World

Other Word Forms of Tetra

Noun

Singular:
tetra
Plural:
tetras

Origin of Tetra

  • Short for New Latin Tetragōnopterīnī group name Late Latin tetragōnum tetragon tetragon Greek pteron wing

    From American Heritage Dictionary of the English Language, 5th Edition

  • Gr tetra- < base of tettares, tessares, four < IE base *kwetwer- > four

    From Webster's New World College Dictionary, 5th Edition

  • From combining form of Ancient Greek τέτταρες (tettares), τέσσαρες (tessares, “four").

    From Wiktionary

  • From Translingual Tetragonopterus, an obsolete genus that included these fish.

    From Wiktionary

  • Greek kwetwer- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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