a·lu·mi·na 
(ə-lmə-nə)
(ə-lmə-nə)n.
Any of several forms of aluminum oxide, Al2O3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum production and in abrasives, refractories, ceramics, and electrical insulation. Also called aluminum oxide.
[New Latin alūmina, from Latin alūmen, alūmin-, alum.]
- methylal
- methyl alcohol
- methylamine
- methylate
- methylated spirit
- methylation
- methylator
- methylbenzene
- methyl bromide
- methylcellulose
- methyl chloride
- methyldopa
- methylene
- methylene blue
- methylergonovine
- methyl ethyl ketone
- methylic
- methyl isocyanate
- methyl methacrylate
- methylnaphthalene
- methylphenidate
- methylprednisolone
- methyl salicylate
- methyltestosterone
- metical