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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 (such as ruby and sapphire) and as an abrasive
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Origin and Etymology of corundum
Tamil kuruntam; akin to Sanskrit kuruvinda ruby
Medical Dictionary
corundum
play
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
Learn More about corundum
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Britannica.com: Encyclopedia article about corundum
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