/ Dictionary / Index P precalculus: Meaning and Definition of Find definitions for: pre•cal•cu•lus Pronunciation: (prē-kal'kyu-lus), [key] — Math. Math. —adj. pertaining to the mathematical prerequisites for the study of calculus, as algebra, analytical geometry, and trigonometry. —n. the course of study leading to calculus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prec. Precambrian Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language