/ Dictionary / Index P petticoat ʰinsulator: Meaning and Definition of Find definitions for: pet'ticoat in'sulator Pronunciation: [key] — Elect. Elect. a bell-shaped insulator used for high-voltage insulation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petticoated petticoat narcissus Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language