/ Dictionary / Index D direct product: Meaning and Definition of Find definitions for: direct' prod'uct Pronunciation: [key] — Math. Math. a group, or other such system, every element of which can be written uniquely as the product of elements of disjoint groups, with each group contributing one element to the product. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. direct primary directress Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language