/ Thesaurus / I Synonyms of integral calculus Find synonyms for: Noun1. integral calculus, calculus, infinitesimal calculususage: the part of calculus that deals with integration and its application in the solution of differential equations and in determining areas or volumes etc.WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language