First Known Use: 1804
Dictionary
corundum
noun co·run·dum \kə-ˈrən-dəm\
Definition of CORUNDUM
: a very hard mineral that consists of aluminum oxide occurring in massive and crystalline forms, that can be synthesized, and that is used for gemstones (as ruby and sapphire) and as an abrasive
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Origin of CORUNDUM
Tamil kuruntam; akin to Sanskrit kuruvinda ruby
Medical Dictionary
corundum
noun co·run·dum \kə-ˈrən-dəm\
Medical Definition of CORUNDUM
: a very hard mineral Al2O3 that consists of alumina occurring in massive form and as variously colored crystals which include the ruby and sapphire
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