Bible Dictionaries
Sesquioxide

Webster's Dictionary

(n.) An oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, Al2O3 is a sesquioxide.

Bibliography Information
Webster, Noah. Entry for 'Sesquioxide'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/sesquioxide.html. 1828.