infrared
Translation
infrared
Examples
The remote control uses an infrared beam.
The remote control uses an infrared beam.
Infrared cameras can detect heat.
Infrared cameras can detect heat.
Grammar Patterns
((infrared)) ((noun)) relating to or using infrared radiation The remote uses an infrared signal.
Similar Words
Antonyms: ultraviolet
Etymology
From 'infra-' (Latin for 'below') + 'red'. It refers to the light on the spectrum that is 'below' red and invisible to the human eye.
Memory Tips
Remember that 'infra-' means 'below'. So, it's the light with a frequency 'below' that of red light.