/ Dictionary / Index C contactor: Meaning and Definition of Find definitions for: con•tac•tor Pronunciation: (kon'tak-tur, kun-tak'tur), [key] — n. Elect. a mechanically operated switch for continuously establishing and interrupting an electric power circuit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. contact mine contact paper Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language