alumina


alumina
a•lu•mi•na
[[t]əˈlu mə nə[/t]] n.
chem. the natural or synthetic oxide of aluminum, Al2O3, occurring in nature in a pure crystal form as corundum
Etymology: 1780–90; < L alūmin-, s. of alūmen alum I+ -a III

From formal English to slang. 2014.

Synonyms: