/ Dictionary / Index N Norco: Meaning and Definition of Find definitions for: Nor•co Pronunciation: (nôr'kō), [key] — n. a town in S California. 21,126. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. NOR circuit Nord Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language