infrared
//ˌɪnfrəˈrɛd//
Adjective
infraredCanonical form
1
Relating to or denoting electromagnetic radiation with wavelengths longer than those of visible red light but shorter than microwaves, typically perceived as heat.
The infrared sensor detects heat from objects in the room.
2
Using or sensitive to infrared radiation, as in imaging or detection technology.
The security system uses infrared sensors to detect movement.
Synonym
Antonym
Noun
1
The infrared region of the electromagnetic spectrum; infrared radiation.
The camera can detect infrared, allowing it to capture images in complete darkness.