Also found in: Thesaurus.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.corundom - very hard mineral used as an abrasive
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
emery - a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper)
alumina, aluminium oxide, aluminum oxide - any of various forms of aluminum oxide occurring naturally as corundum
ruby - a transparent deep red variety of corundum; used as a gemstone and in lasers
sapphire - a precious transparent stone of rich blue corundum valued as a gemstone
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.