UV: meaning, definitions and examples
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UV
[ juː viː ]
science technology
UV stands for ultraviolet, which refers to a type of electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays. It is commonly associated with its effects on skin and its use in sterilization processes. UV radiation is emitted by the sun and is used in various applications such as disinfection, fluorescence, and in some types of photography.
Synonyms
Examples of usage
- Sunscreen can protect your skin from harmful UV rays.
- UV sterilization is effective in killing bacteria.
- The UV light emitted by the lamp is strong enough to cause damage.
- Animals like bees can see UV patterns on flowers that humans cannot.
- Many tanning beds emit UV radiation.
Etymology
The term 'ultraviolet' originates from the Latin word 'ultra', meaning 'beyond', combined with the word 'violet', which is the color of the shortest visible wavelength of light. The concept of ultraviolet light was first described in the 1800s when scientists discovered that sunlight could produce effects beyond the violet end of the spectrum. This discovery was significant in the fields of physics and chemistry, particularly in understanding the behavior of light and its interactions with matter. Over time, the term 'UV' has become widely used in various scientific disciplines, including biology, medicine, and environmental science, particularly in discussions around sun exposure and its health implications.