/ Dictionary / Index D dielectric constant: Meaning and Definition of Find definitions for: di'elec'tric con'stant Pronunciation: [key] — Elect. Elect. permittivity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dielectric dielectric heating Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language