infrared radiation

[ (in-fruh-red) ]

Invisible radiation in the part of the electromagnetic spectrum characterized by wavelengths just longer than those of ordinary visible red light and shorter than those of microwaves or radio waves. (Compare ultraviolet radiation.)

Notes for infrared radiation

The heat we feel from a glowing coal or an incandescent light bulb is from infrared rays.

Words Nearby infrared radiation

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

How to use infrared radiation in a sentence

  • Remote-sensing instruments in Earth-orbit satellites measure radar, visible light, and infrared radiation.

    Deserts | A. S. Walker