/ Dictionary / Index D dialer: Meaning and Definition of Find definitions for: di•al•er Pronunciation: (dī'u-lur, dī'lur), [key] — n. a person or thing that dials. an electronic device attached to a telephone to call preselected numbers automatically when activated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dialectology diallage Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language