Definitions
any of various forms of aluminum oxide occurring naturally as corundum
Word origin
From the combining form of Latin alumen + -a.
Used in a sentence
“The apocrenates of iron and manganese are slightly soluble; those of lime, magnesia and alumina are insoluble.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Ceramic oxide”7 letters
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