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: T T- T. Ta Tb Tc Td Te Th Ti Tj Tk Tl Tm Tn To Tp Tr Ts Tt Tu Tv Tw Tx Ty Tz
teton | teton dakota | teton range | teton sioux | tetra | Tetra- | tetrabasic | tetrabasic acid | tetraboric | tetrabranchiata | tetrabranchiate

Tetra-

CIDE DICTIONARY

Tetra-,  [Gr. te`tra-, from te`sares, te`ttares, four. See Four.].
  •  A combining form or prefix signifying four, as in tetrabasic, tetrapetalous.  [1913 Webster]
  •  A combining form (also used adjectively) denoting four proportional or combining parts of the substance or ingredient denoted by the term to which it is prefixed, as in tetra-chloride, tetroxide.  [1913 Webster]

OXFORD DICTIONARY

Tetra-, comb. form (also tetr- before a vowel)
1 four (tetrapod).
2 Chem. (forming names of compounds) containing four atoms or groups of a specified kind (tetroxide).

Etymology
Gk f. tettares four

For further exploring for "Tetra-" in Webster Dictionary Online


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