Adjacent Words

tetra- definitions

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Merriam Webster's

or tetr- combining form Etymology: New Latin, from Greek; akin to Greek tettares four — more at four 1. four ; having four ; having four parts <tetravalent> 2. containing four atoms or groups (of a specified kind) <tetrachloride>

Oxford Reference Dictionary

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

Webster's 1913 Dictionary

Tetra- Tet"ra- [Gr. te`tra-, from te`sares, te`ttares, four. See Four.] 1. A combining form or prefix signifying four, as in tetrabasic, tetrapetalous. 2. (Chem.) 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.