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Meaning of TETRATOMIC

 
Webster's 1913 Dictionary
 
 Definition: 
\Tet`ra*tom"ic\, a. [Tetra- + atomic.] (Chem.)
(a) Consisting of four atoms; having four atoms in the
    molecule, as phosphorus and arsenic.
(b) Having a valence of four; quadrivalent; tetravalent;
    sometimes, in a specific sense, having four hydroxyl
    groups, whether acid or basic.

 

 

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