/ Dictionary / Index E exteriority: Meaning and Definition of Find definitions for: ex•te•ri•or•i•ty Pronunciation: (ik-stēr"ē-ôr'i-tē, -or'-), [key] — pl. -ties. the state or fact of being exterior. something exterior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. exterior angle exteriorize Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language