Monoxide
ahd-5
noun.
An oxide with each molecule containing one oxygen atom.
the GNU version of the Collaborative International Dictionary of English
noun.
An oxide containing one atom of oxygen in each molecule.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
any
oxide
containing a single
oxygen
atom
in each
molecule
or formula unit
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
an oxide containing just one atom of oxygen in the molecule