Толковый словарь английского языка Oxford English Reference - integral

adj. & n. --adj. disp. 1 a of a whole or necessary to the completeness of a whole. b forming a whole (integral design). c whole, complete. 2 Math. a of or denoted by an integer. b involving only integers, esp. as coefficients of a function. --n. Math. 1 a quantity of which a given function is the derivative, either containing an indeterminate additive constant (indefinite integral), or calculated as the difference between its values at specified limits (definite integral). 2 a function satisfying a given differential equation. Phrases and idioms integral calculus mathematics concerned with finding integrals, their properties and application, etc. (cf. differential calculus). Derivatives integrality n. integrally adv. Etymology: LL integralis (as INTEGER)