from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Occurring as single atoms.

from The Century Dictionary.

  • Having the same valence or atomicity as hydrogen, represented by unity.

from the GNU version of the Collaborative International Dictionary of English.

  • adverb Consisting of, or containing, one atom.
  • adverb Having the equivalence or replacing power of an atom of hydrogen; univalent.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective chemistry Of an element, consisting of a single atom in the molecule; for example: the noble gases. Note: strictly speaking, a molecule has at least two atoms.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective of or relating to an element consisting of a single atom


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    Sorry, no example sentences found.


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