Breadcrumb Home > Dictionary > Index W waveguide: Meaning and Definition of Find definitions for: wave•guide Pronunciation: (wāv'gīd"), [key] — n. Electronics, Optics. a conduit, as a metal tube, coaxial cable, or strand of glass fibers, used as a conductor or directional transmitter for various kinds of electromagnetic waves. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: waveguide (Thesaurus) wave function wavelength TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language