1. Relating to or containing a single atom. 2. SYN: monovalent (1).
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mon·atom·ic .män-ə-'täm-ik adj
1) consisting of one atom esp having but one atom in the molecule
2) MONOVALENT (1)
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mon·atom·ic (mon″ə-tomґik) [mon- + atomic] 1. monovalent (def. 1). 2. monobasic. 3. consisting of monatomic molecules.Medical dictionary. 2011.