Definitions from Wiktionary (corundum)
▸ noun: (mineralogy) An extremely hard mineral, a form of aluminum oxide with the chemical formula Al₂O₃, that occurs in the form of the gemstones sapphire and ruby; it is used as an abrasive.
▸ Also see corundum
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▸ noun: (mineralogy) An extremely hard mineral, a form of aluminum oxide with the chemical formula Al₂O₃, that occurs in the form of the gemstones sapphire and ruby; it is used as an abrasive.
▸ Also see corundum
Opposite:
▸ Words similar to Corundums
▸ Usage examples for Corundums
▸ Idioms related to Corundums
▸ Wikipedia articles (New!)
▸ Popular adjectives describing Corundums
▸ Words that often appear near Corundums
▸ Rhymes of Corundums
▸ Invented words related to Corundums