infrared
IPA: ɪnfrɝˈɛd
noun
- (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.
- (countable) A specific wavelength in this range.
- (countable) A device that emits infrared radiation.
adjective
- Having a wavelength in the infrared spectrum.
- (figurative, physics) Relating to very low energies or very large distances or time spans.
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Examples of "infrared" in Sentences
- It deviates in the ultraviolet and infrared regions.
- Heat in the near infrared from Sirius is perceptible.
- The infrared energy from the filament heats the sample.
- The greenhouse gases also radiate in the infrared range.
- An incandescent lamp is used for the source of infrared radiation.
- On the end is the infrared transmitter and the lens, approximately.
- In the near infrared the spectrum of Ixion is flat and featureless.
- This is typical of the infrared spectra of heteronuclear diatomic molecules.
- The phenomenon accounts for the brightness of foliage in infrared photography.
- The infrared filter moves out of the light path of the photosensitive elements.
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