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

In a groundbreaking leap for photonics, scientists have created the world’s first programmable nonlinear photonic waveguide, a device that can switch between multiple optical functions on a single chip. —Neetika Walter, Interesting Engineering, 14 Oct. 2025

Display Both glasses use waveguide displays, which rely on etched patterns in flat lenses to channel images from a microprojector to the eye. —PC Magazine, 21 Sep. 2025

They are touted to be the world’s first pair of smartglasses to feature 1080p full-color optical waveguide. —Prakhar Khanna, Forbes.com, 8 Sep. 2025

Additionally, Samantha Walsh of Sears Home Services says that certain harsh chemicals can damage the protective shielding inside the microwave, including components like the waveguide cover or the interior of the microwave door. —Maria Sabella, Better Homes & Gardens, 7 Aug. 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