| Learning / English Dictionary |
INFRARED
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
Example:
they could sense radiation in the infrared
Synonyms:
infrared; infrared frequency
Classified under:
Nouns denoting attributes of people and objects
Hypernyms ("infrared" is a kind of...):
frequence; frequency; oftenness (the number of occurrences within a given time period)
Holonyms ("infrared" is a part of...):
infrared spectrum (the spectrum of infrared radiation)
Sense 2
Meaning:
Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
Synonyms:
infrared; infrared emission; infrared light; infrared radiation
Classified under:
Nouns denoting natural phenomena
Hypernyms ("infrared" is a kind of...):
actinic radiation; actinic ray (electromagnetic radiation that can produce photochemical reactions)
II. (adjective)
Sense 1
Meaning:
Having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
Example:
infrared photography
Classified under:
Similar:
invisible; unseeable (impossible or nearly impossible to see; imperceptible by the eye)
Context examples:
It measures how plants absorb and reflect light — the more infrared light is reflected, the healthier the vegetation.
(Tracking Deer by NASA Satellite, NASA)
Light therapy can use lasers, LED, fluorescent lamps, and ultraviolet or infrared radiation.
(Light therapy, NCI Dictionary)
OCT uses infrared light waves that reflect off the internal microstructure within the biological tissues.
(Optical coherence tomography, NCI Thesaurus)
The false colors provide a way to humans to talk about infrared wavelengths of light their eyes cannot actually see.
(Citizen Scientists Discover Yellow "Space Balls", NASA)
The treatment of a disorder by exposure to light, including ultraviolet and infrared radiation.
(Phototherapy, NCI Thesaurus)
Electromagnetic radiation between the ultrahigh frequency radio and infrared (in the 10e-3 (micro) to about 0.5 X 10e-1 meter) region of the spectrum.
(Microwave Radiation, NCI Thesaurus)
It includes ultraviolet, infrared, and low-emission laser frequencies.
(Actinotherapy, NCI Thesaurus)
It includes radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays.
(Electromagnetic radiation, NCI Dictionary)
In medicine, a procedure in which an infrared camera (one that senses heat) is used to measure temperature differences on the surface of the body.
(Infrared thermography, NCI Dictionary)
Another new image, obtained with the VISIR instrument on the VLT, shows the infrared light being emitted by the dust surrounding Betelgeuse in December 2019.
(ESO Telescope Sees Surface of Dim Betelgeuse, ESO)
