infrareds

Noun

infrared (countable and uncountable, plural infrareds)

1. (uncountable) The electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.
   • Collisions of these 'transparent' molecules with the molecules that do have absorption bands in the infrared can have a considerable influence on the intensities of the observed absorption bands.1962, John Nelson Howard, Transmission of the Atmosphere in the Infrared: A Review, page 3
2. (countable) A specific wavelength in this range.
   • Sonne has shown that by means of the luminous rays the temperature in the tissue may be raised to a higher degree than by the use of the infrareds.1924, The American Review of Tuberculosis, page 110
3. (countable) A device that emits infrared radiation.
   • In his room, he could install his infrareds without being discovered.2000, Pete Fowler, Keeps, page 62

See all 5 meanings of infrared