calculus meaning and definition

CALCULUS noun

Definition of calculus (noun)

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"
   • synonyms: concretion
2. an incrustation that forms on the teeth and gums
   • synonyms: tartar, tophus
3. the branch of mathematics that is concerned with limits and with the differentiation and integration of functions
   • synonyms: infinitesimal calculus