Infrared Radiation

Electromagnetic radiation with wavelengths longer than visible light.

IR radiation infrared rays

Infrared radiation is electromagnetic radiation with wavelengths longer than those of visible light. It is often associated with heat.

Pronunciation

/ˌɪnfərˈred ˈreɪdiʃən/

Etymology

The term 'infrared' was coined by William Herschel in 1800, combining 'infra' (below) with 'red', as it lies beyond the red end of the visible spectrum.

Synonyms — Similar or Related Terms

heat radiation

Hypernyms — Broader Categories

electromagnetic radiation

Hyponyms — Specific Examples

far-infrared mid-infrared near-infrared

Holonyms — Wholes or Groups

electromagnetic spectrum

Indexes

electrical physical phenomenon

Electromagnetic Radiation
Light
Radiation
Ray
Red
Sunlight

Built by Tim Jones