Ultraviolet light is a type of electromagnetic radiation that has a wavelength shorter than that of visible light. Synonyms for ultraviolet light include UV light, black light, and UV radiation. Black light is a term commonly used to refer to ultraviolet light since it causes some materials to fluoresce, emitting visible light. It is often used in entertainment venues and shows. UV radiation encompasses both UVA and UVB rays and is commonly associated with skin damage and sunburn. UV light is essential for vitamin D production but can also cause damage to the skin and eyes if overexposed. Overall, these synonyms provide different perspectives on the properties and effects of ultraviolet light.