having a specified gait (usually used in combination): slow-gaited; heavy-gaited oxen. Origin of gaited. 1580-1590. First recorded in 1580-90; gait + -ed3. Related forms.
Medical Definition of ALUMINA. : an oxide of aluminum Al2O3 that occurs native as corundum and in hydrated forms (as in bauxite) and is used in antacidsâcalled also aluminum oxide.
Activated alumina is a filter media made by treating aluminum ore (bauxite) so that it becomes porous and highly adsorptive. It consists mainly of Al2O3. The production process includes calcination at 500Â°C, which at the same time removes all organic substances.ctivated alumina is capable of removing a variety of substances including excessive fluoride, arsenic and selenium. The fluoride removal process is based on adsorption on the surface of the activated alumina.