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tetratomic |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tetratomic \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.