Ultra-violet light is a term used to describe electromagnetic radiation that is shorter in wavelength and higher in energy than visible light. Synonyms for ultra-violet light can depend on the use case and the field of study. Some popular synonyms include UV light, UV rays, black light, and UV radiation. Other terms that are used to describe ultra-violet light in a specific context include germicidal UV, UVA, UVB, and UVC. In the scientific community, researchers often use specific terms to describe the wavelength ranges associated with ultra-violet light. Regardless of the term used, exposure to UV light can carry health risks, and it's essential to take proper precautions to avoid overexposure.