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 new work differs by using direct ink writing to create three-dimensional channel waveguides, rather than a planar structure. — Rupendra Brahambhatt, Interesting Engineering, 22 Aug. 2026

Making Waveguide Glasses Practical These Android XR glasses feel like a significant step in making wireless, waveguide display smart glasses truly accessible to users. — Will Greenwald, PC Magazine, 20 May 2026

Light is channeled along the length of each cantilever via a waveguide, and exits at its tip. — IEEE Spectrum, 9 Apr. 2026

Word History

First Known Use

1932, in the meaning defined above

Rhymes for waveguide

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

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