monatomic

(män′ə tämik)

adjective

    1. consisting of one atom: said of a molecule
    2. having one atom in the molecule
  1. containing one replaceable atom or atomic group
  2. monovalent (sense )

Origin: mon- + atomic

See monatomic in American Heritage Dictionary 4

adjective
  1. Occurring as single atoms: Helium is a monatomic gas.
  2. Having one replaceable atom or radical.
  3. Univalent.

Related Forms:

  • monˌa·tomˈic·al·ly adverb

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