Calculus - Definition
calculus
n 1: a hard lump produced by the concretion of mineral salts;
found in hollow organs or ducts of the body; "renal calculi
can be very painful" [syn: calculus, concretion]
2: an incrustation that forms on the teeth and gums [syn:
tartar, calculus, tophus]
3: the branch of mathematics that is concerned with limits and
with the differentiation and integration of functions [syn:
calculus, infinitesimal calculus]