| NOUN | phenomenon | actinic ray, actinic radiation | electromagnetic radiation that can produce photochemical reactions |
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| Meaning | electromagnetic radiation that can produce photochemical reactions. | |
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| Synonym | actinic radiation | |
| Part of | electromagnetic spectrum | The entire frequency range of electromagnetic waves |
| Narrower | infrared, infrared light, infrared radiation, infrared emission | electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves |
| light, visible light, visible radiation | (physics) electromagnetic radiation that can produce a visual sensation | |
| ultraviolet, ultraviolet radiation, ultraviolet light, ultraviolet illumination, UV | Radiation lying in the ultraviolet range | |
| Broader | electromagnetic radiation, electromagnetic wave, nonparticulate radiation | Radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge |
| Spanish | rayo actínico | |
| Catalan | raig actínic | |
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