/ Dictionary / Index C cross product: Meaning and Definition of Find definitions for: cross' prod"uct Pronunciation: [key] — Math. Math. a vector perpendicular to two given vectors, u and v, and having magnitude equal to the product of the magnitudes of the two given vectors multiplied by the sine of the angle between the two given vectors, usually represented by u ×Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cross-pollination cross-purpose Related Content Daily Word Quiz: sumptuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language