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noun

corundum

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Corundum (noun) means a very hard mineral made of aluminium oxide, found naturally as sapphire and ruby and used for grinding and polishing.

noun
1
A very hard mineral made of aluminium oxide, found naturally as sapphire and ruby and used for grinding and polishing.
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Etymology

It comes from Tamil குருந்தம் (kuruntam, "ruby, sapphire") and was first attested in the early 18th century.

corundom

Frequently asked questions

What is the meaning of corundum?
"corundum" (noun) means a very hard mineral made of aluminium oxide, found naturally as sapphire and ruby and used for grinding and polishing.
What is another word for corundum?
Other words for "corundum" include corundom.
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