Breadcrumb Home > Dictionary > Index H Heaviside: Meaning and Definition of Find definitions for: Heav•i•side Pronunciation: (hev'ē-sīd"), [key] 1850–1925, English physicist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heaviside (Thesaurus) heavily Heaviside layer ✖ Related Content Daily Word Quiz: donnybrook Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language