infrared

infrared definition - medical

in·fra·red (ĭnˌfrə-rĕdˈ)

adjective
  1. Of or relating to the range of invisible radiation wavelengths from about 750 nanometers, just longer than red in the visible spectrum, to 1 millimeter, on the border of the microwave region.
  2. Generating, using, or sensitive to infrared radiation.
noun
Infrared light or the infrared part of the spectrum.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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