waveguide

noun

wave·​guide ˈwāv-ˌgīd 

: a device (such as a duct, coaxial cable, or glass fiber) designed to confine and direct the propagation of electromagnetic waves (such as light)

especially : a metal tube for channeling ultrahigh-frequency waves

Examples of waveguide in a Sentence

Recent Examples on the Web

The woofer, tweeter, and tweeter’s waveguide are all black, and the surrounding panel is gray. —PC Magazine, 4 June 2025

This was a continuation of the design language from the previous generation, and likely also reflected the technical limitations of the display, light engine and waveguide. —Anshel Sag, Forbes, 23 Oct. 2024

The right lens is etched with a rectangular waveguide that is only visible to others from the back. —PC Magazine, 11 Apr. 2025

The underlying mechanics involve a slab waveguide composed of a silicon nitride core, a photoconductive silicon-rich nitride layer, and an indium tin oxide electrode. —The Physics Arxiv Blog, Discover Magazine, 31 Mar. 2025

Word History

First Known Use

1932, in the meaning defined above

Rhymes for waveguide

• actinide
• aldehyde
• alkoxide
• alongside
• amplified
• arsenide
• beautified
• biocide
• butoxide
• calcified
• ceramide
• certified

Medical Definition

waveguide

noun

wave·​guide ˈwāv-ˌgīd 

: a device (as a glass fiber) designed to confine and direct the propagation of electromagnetic waves (as light)

use of waveguides for visual examination of the stomach