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alumina
Definitions
[əˈl(j)uːmɪnə], (Noun)
Definitions:
- a white solid that is a major constituent of many rocks, especially clays, and is found crystallized as corundum, sapphire, and other minerals
Phrases:
Origin
:
late 18th century: from Latin alumen (see alum), on the pattern of words such as magnesia
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definition by Oxford Dictionaries