Sesquioxide

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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.
     [1913 Webster] Sesquipedal