Definitions
1.nounCalculation; computation.
2.nounAny formal system in which symbolic expressions are manipulated according to fixed rules."lambda calculus"
3.noun(often definite, the calculus) Differential calculus and integral calculus considered as a single subject; analysis.
4.nounA stony concretion that forms in a bodily organ."renal calculus ( = kidney stone)"
5.nounDeposits of calcium phosphate salts on teeth.
6.nounA decision-making method, especially one appropriate for a specialised realm.