Definitions

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

  • noun A compound having five atoms of oxygen combined with another element.

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

  • noun (Chem.) An oxide containing five atoms of oxygen in each molecule.

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

  • noun chemistry any oxide containing five oxygen atoms in each molecule

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

  • noun an oxide containing five atoms of oxygen in the molecule

Etymologies

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