The chemical compound aluminium oxide (Al2O3). Heat treatment of alumina yields a tough, hard-wearing ceramic used to make dental and surgical implants.

Aluminum oxide.

(n) any of various forms of aluminum oxide occurring naturally as corundum

An oxide of Aluminum, occurring in Nature as various Minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of Dental Cements and [..]

A compound with many biomedical applications: as a gastric antacid, an Antiperspirant, in Dentifrices, as an emulsifier, as an adjuvant in bacterins and Vaccines, in Water Purification, etc.

A mineral (aluminium oxide [Al2

<chemistry> One of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3. It is the oxide of the metal aluminium, the base of aluminous salts, a constituent of a large part of the earthy siliceous minerals, as the feldspars, micas, scapolites, etc, and the characterising ingredient of common clay, in which it exists as a [..]

Aluminium oxide produced predominately from bauxite. Reduced electrolytically into aluminium in a primary smelter.

Aluminum oxide occasionally found as an impurity in water in very small amounts.