/ Dictionary / Index E extrados: Meaning and Definition of Find definitions for: ex•tra•dos Pronunciation: (ek'stru-dos", -dōs", ek-strā'dos, -dōs), [key] — pl. -dos -dos•es. the exterior curve or surface of an arch or vault. Also calledCf. intrados. See diag. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: extrados (Thesaurus) extra dividend extradosed Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language