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infrared

infrared

5 4.8
Light with waves longer than red light that you cannot see but feel as heat
  • noun
  • /ˌɪnfrəˈrɛd/
  • Specialized
translation icon : infrarrojo
  • As compared to the range of the visible spectrum, the infrared covers a thousand times greater spread of wavelengths.

Well, yes we can because infrared can pass through some of that dust.

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Examples

  • My door is just green leaves reflecting infrared light, and it's warm.

  • Well, yes we can because infrared can pass through some of that dust.

  • So you go below the red, you get infrared below the red.

  • The F near is just infrared light.

  • Infrared is just above red, but well before heat and beyond the range of human vision.

    Academic text (2008)
  • All right, so I've got my infrared camera set up.

  • Radar was blank, of course, and the infrared was just a smudge.

    Fiction book (1995)
  • Greenhouse gases, on the other hand, are great infrared wigglers.

  • We're looking at emitted radiation in the thermal infrared, the TIR.

  • The scientist used an infrared camera to detect heat emitted by the animals at night.

Synonyms

infrared light
vsinfrared
  • Specialized
5 4.0

Light you cannot see that often feels warm

is the narrower spectral band limited to wavelengths below microwaves
infrared radiation
vsinfrared
  • Specialized
4 4.2

A type of light we cannot see that warm things give off

is identified as the spectral band for technology and astronomy
infrared ray
vsinfrared
  • Specialized
1 4.4

A type of light you cannot see that makes things warm

is the overall part of the spectrum rather than a single beam
infrared spectrum
vsinfrared
  • Specialized
4.9

Range of light waves longer than visible light that we feel as heat

is the spectral band often used in technology and astronomy
infrared frequency
vsinfrared
  • Specialized
6.1

A range of light waves below visible light, like the glow from a TV remote

refers to the wavelength band between visible and microwaves
infrared emission
vsinfrared
  • Specialized
5.7

Invisible light that warm things give off

is the spectral region defined by wavelength limits, not only emission sources

Compounds

infrared light
  • Specialized
5 4.0

Light you cannot see that often feels warm

infrared radiation
  • Specialized
4 4.2

A type of light we cannot see that warm things give off

infrared ray
  • Specialized
1 4.4

A type of light you cannot see that makes things warm

infrared technology
  • Specialized
1 3.8

Technology that uses invisible light felt as heat to find things or send signals

infrared lamp
  • Specialized
1 4.2

A light that gives heat you can feel but not see, used to warm or help sore muscles

infrared signal
  • Specialized
4.1

A type of invisible light used to send information between devices

infrared spectrum
  • Specialized
4.9

Range of light waves longer than visible light that we feel as heat

infrared therapy
  • Specialized
5.1

A treatment that uses heat from special light to reduce pain and improve blood flow

infrared emission
  • Specialized
5.7

Invisible light that warm things give off

infrared frequency
  • Specialized
6.1

A range of light waves below visible light, like the glow from a TV remote

How Energetic

gamma ray
  • Specialized
21 4.2
X-ray
  • Specialized
99 3.2
ultraviolet
  • Specialized
14 5.1
visible light
  • Specialized
10 3.4
infrared
  • Specialized
5 4.8
microwave
  • Specialized
55 3.7
radio wave
  • Specialized
19 3.2

Surface Forms

infrared singular
infrareds plural

Morphology

infrared = red (semi-transparent) = infra + red

The word is built from infra- plus red, but the technical meaning 'beyond red in the spectrum' is specialized and not fully recoverable for many learners.

Etymology

Infrared comes from the Latin prefix infra- meaning 'below' and the color red. So it means 'below red' on the light spectrum, which is the part of light with longer waves than visible red.