integral calculus: Meaning and Definition of

in'tegral cal'culus

Pronunciation: [key]
  1. the branch of mathematics that deals with integrals, esp. the methods of ascertaining indefinite integrals and applying them to the solution of differential equations and the determining of areas, volumes, and lengths.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.