corundum
Meaning
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.
Synonyms
diamond spar
corundom
electrolon
gem stone
hard jade
grinding compound
adamantine spar
admantine spar
emery sand
diamond grain
Translations
Korund
corindone
corindon
corindón
corindó
coríndon
korund
أكسيد الألمونيوم
zımpara
είδος σκληρότατου λίθουPronounced as (IPA)
/kəˈɹʌn.dəm/
Etymology
From Tamil குருந்தம் (kuruntam, “ruby, sapphire”) First attested in the early 18th century.
Notes
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