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infrared

noun · adjective

Simple meaning

Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.

Pronunciation

Say it like this:

ihnfrerehd

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US device voice
IPA pronunciation (US)

ɪnfɹɚˈɛd

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. countable

    A device that emits infrared radiation.

  2. Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves

  3. countable

    A specific wavelength in this range.

adjective

  1. Having a wavelength in the infrared spectrum.

Word at a Glance

Difficulty
B1 · Intermediate (estimated)
Frequency
Common
Typical Use
Everyday English

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More ways to use infrared

  • “They could sense radiation in the infrared.”noun

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Common Patterns and Combinations

How this word naturally appears with others.

Electromagnetic / infrared

infrared radiationinfrared spectrum

Other combinations

infrared spectroscopyinfrared photographyinfrared emissioninfrared detectorsinfrared absorptiontransform infrared

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • infrared emissionnounCompound term

    Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.

  • infrared frequencynounCompound term

    The infrared region of the electromagnetic spectrum.

  • infrared lampnounCompound term

    Electric heater consisting of a high-power incandescent lamp that emits infrared radiation.

  • infrared lightnounCompound term

    Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.

  • infrared radiationnounCompound term

    Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.

  • infrared raynounCompound term

    A ray of infrared radiation.

Related Words

Connected to the same idea, not synonyms.

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.