Word:

Corundum

Co`run´dum   Pronunciation: kô`rŭn´dŭm
n.1.(Min.) The mineral alumina (Al2O3), as found native in a crystalline state. Transparent varieties are used as gemstones, including sapphire, which is the fine blue variety; the oriental ruby, or red sapphire; the oriental amethyst, or purple sapphire; and adamantine spar, the hair-brown variety. It is the hardest substance found native, next to the diamond.
Noun1.corundum - very hard mineral used as an abrasive
Synonyms: corundom
alumina, aluminium oxide, aluminum oxide, corundom, emery, mineral, ruby, sapphire
Translate Corundum to French
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Cortinariaceae
Cortinarius
Cortinarius armillatus
Cortinarius atkinsonianus
Cortinarius corrugatus
Cortinarius gentilis
Cortinarius mutabilis
Cortinarius semisanguineus
Cortinarius subfoetidus
Cortinarius violaceus
cortisol
cortisone
CORTL
Cortland
Cortone Acetate
corundom
-- Corundum --
Coruscant
Coruscate
Coruscation
Corve
Corvee
Corven
Corvet
corvette
Corvetto
Corvidae
Corvine
corvine bird
Corvorant
Corvus
Corvus brachyrhyncos
Corvus corax
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