Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Trioxide" Definition
noun
An oxide containing three oxygen atoms per molecule.
Source: American Heritage Dictionary
An oxide containing three atoms of oxygen.
Source: Merriam-Webster
An oxide containing three atoms of oxygen in its molecule or empirical formula.
Source: Oxford Dictionary
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