/ Dictionary / Index T typographical error: Meaning and Definition of Find definitions for: typograph'ical er'ror Pronunciation: [key] an error in printed or typewritten matter resulting from striking the improper key of a keyboard, from mechanical failure, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. typographic typography Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language