Word Study
triatomic
CIDE DICTIONARY
triatomic, a. [Pref. tri- + atomic.].
Having three atoms; -- said of certain elements or radicals. [1913 Webster]
OXFORD DICTIONARY
triatomic, adj. Chem.
1 having three atoms (of a specified kind) in the molecule.
2 having three replacement atoms or radicals.
1 having three atoms (of a specified kind) in the molecule.
2 having three replacement atoms or radicals.
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