/ Dictionary / Index I intrados: Meaning and Definition of Find definitions for: in•tra•dos Pronunciation: (in'tru-dos", -dōs", in-trā'dos, -dōs), [key] — pl. -dos -dos•es. the interior curve or surface of an arch or vault. Cf. extrados. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: intrados (Thesaurus) intradermal intragalactic Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language