Of, relating to, or forming a base; fundamental: "Basic changes in public opinion often occur because of shifts in concerns and priorities" (Atlantic).
Of, being, or serving as a starting point or basis: a basic course in Russian; a set of basic woodworking tools.
Chemistry
Of or relating to a base.
Containing a base, especially in excess of acid.
Alkaline.
Geology Containing little silica, as igneous rocks.
An essential, fundamental element or entity: the basics of math.
Basic training.
basicity ba·sic·i·ty (bā-sĭs'ĭ-tē) n.
The ability of an acid to react based on the number of replaceable hydrogen atoms it contains.
The quality of being basic.