infrared
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infrared
- /ˌɪnfɹəˈɹɛd/ Canada, UK, US
- /ˌɪnfɹəˈɹed/ Australia
- /ɪn.fɾɑ.ɾĕɖ/ South Asia
Where it comes from
From infra- + red.
noun infrareds
- The electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm. Collisions of these 'transparent' molecules with the molecules that do have absorption bands in the infrared can have a considerable influence on the intensities of the observed absorption bands.
- A specific wavelength in this range. Sonne has shown that by means of the luminous rays the temperature in the tissue may be raised to a higher degree than by the use of the infrareds.
- A device that emits infrared radiation. In his room, he could install his infrareds without being discovered.
adjective
- Having a wavelength in the infrared spectrum.
-
Relating to very low energies or very large distances or time spans.
Unless otherwise stated, we will be working in Euclidean space compactified to a sphere in order to avoid infrared problems.
Opposite: ultraviolet
Thesaurus
Closest in meaning: infrared radiation, invisible, unseeable, infrared emission, infrared frequency, infrared light, infra-red, nir, infrarouge, near-infrared, mid-infrared, ir, mir, far-infrared, fir, near infrared
Translations
Every language
noun radiation of a wavelength between 700 nm and 1 mm
| Español | infrarrojo |
|---|---|
| 한국어 | 적외선 jeogoeseon |
| 日本語 | 赤外線 sekigaisen |
| 中文 | 紅外線 /红外线 hóngwàixiàn |
| हिन्दी | अवरक्त avrakt |
| Português | infravermelho |
| Français | infrarouge |
| Deutsch | Infrarot |
| Italiano | infrarosso |
| Ελληνικά | υπέρυθρος ypérythros |
adj having the wavelength in the infrared
| Español | infrarrojo, ultrarrojo |
|---|---|
| 日本語 | 赤外 sekigai |
| 中文 | 紅外 /红外 hóngwài |
| हिन्दी | अवरक्त avrakt |
| Português | infravermelho |
| Français | infrarouge |
| Deutsch | infrarot |
| Italiano | infrarosso |
| Ελληνικά | υπέρυθρος ypérythros |
| Română | infraroșu |
| Русский | инфракра́сный infrakrásnyj |
| Tiếng Việt | hồng ngoại |
| العربية | تَحْتَ اَلْحَمْرَاء taḥta l-ḥamrāʔ |
Talk about this word "infrared." Wiktionary, via Micwyn, micwyn.com/word/infrared. Accessed 6 Nov. 2026. infrared. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/infrared "infrared." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/infrared.Cite this
@misc{infrared_2026,
title = {infrared},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/infrared},
urldate = {2026-11-06}
}
