English to English adjective
1 |
Lying outside the visible spectrum at its red end; -- said of rays less refrangible than the extreme red rays. | | source: webster1913 adjective satellite
2 |
having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end | | Example: infrared radiation infrared photography
source: wordnet30 noun
3 |
the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range | | Example: they could sense radiation in the infrared
source: wordnet30
4 |
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves | | source: wordnet30
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