1. infrared spectrum

noun. The spectrum of infrared radiation.
Synonyms
spectrum electromagnetic spectrum infrared infrared frequency
Antonyms
visible
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2. spectrum

noun. (ˈspɛktrəm) An ordered array of the components of an emission or wave.
Synonyms
radio-frequency spectrum mass spectrum electromagnetic spectrum array visible spectrum action spectrum spectrum line absorption spectrum sound spectrum emission spectrum infrared spectrum microwave spectrum acoustic spectrum color spectrum ultraviolet spectrum radio spectrum line spectrum atomic spectrum
Antonyms
incapability leave stand still point of periapsis periapsis
Etymology
spectrum (English)
spectrum (Latin)
specio (Latin)

3. infrared

adjective. (ˌɪnfrɝˈɛd) Having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end.
Synonyms
unseeable invisible
Antonyms
visible overt perceptible
Etymology
infrared (English)
infra (Latin)

4. spectrum

noun. (ˈspɛktrəm) A broad range of related objects or values or qualities or ideas or activities.
Synonyms
reach orbit range scope compass ambit
Antonyms
disarrange bottom out stay in place top out fail
Etymology
spectrum (English)
spectrum (Latin)
specio (Latin)

5. infrared

noun. (ˌɪnfrɝˈɛd) The infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range.
Synonyms
infrared spectrum frequency oftenness frequence infrared frequency
Antonyms
inconspicuousness conspicuous panoptical microscopic microscopical
Etymology
infrared (English)
infra (Latin)

6. infrared

noun. (ˌɪnfrɝˈɛd) Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.
Synonyms
actinic radiation infrared emission actinic ray infrared radiation infrared light
Antonyms
telescopic viewable in sight macroscopic macroscopical
Etymology
infrared (English)
infra (Latin)
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