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Alumina

noun

Definitions

Noun
  1. 1
    Aluminum oxide, especially when used in mining, material sciences or ceramics, a refractory solid compound. countable, uncountable

    "The apocrenates of iron and manganese are slightly soluble; those of lime, magnesia and alumina are insoluble."

  2. 2
    any of various forms of aluminum oxide occurring naturally as corundum wordnet

Etymology

From the combining form of Latin alumen + -a.

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