Definitions
from the GNU version of the Collaborative International Dictionary of English.
- noun (Physics) electromagnetic radiation having a wavelength of between 700 nanometers and 1 millimeter.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics
Electromagnetic radiation having awavelength approximately between 1micrometre and 1millimetre ; perceived asheat .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
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