/ Dictionary / Index D Didot point system: Meaning and Definition of Find definitions for: Di•dot' point' sys"tem Pronunciation: (dē-dō'), [key] — Print. Print. a Continental system of measurement for type, based on a unit of 0.0148 in. (0.3759 mm). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dido didrachm 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