waveguide


wave·guide

noun \ˈwāv-ˌgīd\

Definition of WAVEGUIDE

: 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>

Seen & Heard

What made you want to look up waveguide? Please tell us where you read or heard it (including the quote, if possible).