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sesquioxide |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Sesquioxide \Ses`qui*ox"ide\, n. [Sesqui- + oxide.] (Chem.) An oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus alumina, {Al2O3} is a sesquioxide.