calculus

Nouns

(n) 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
concretion,
(n) an incrustation that forms on the teeth and gums tophus, tartar,
(n) the branch of mathematics that is concerned with limits and with the differentiation and integration of functions infinitesimal calculus,

Synonyms

concretion tophus tartar infinitesimal calculus

Words of close approximity

calculus of variations