UV index

noun

: a number on a scale which extends indefinitely upward from a baseline of 0 and whose values express the intensity of solar ultraviolet radiation at noon on a given day for a particular location with 0 indicating negligible ultraviolet exposure and values over 10 indicating very high ultraviolet exposure

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Cite this Entry

“UV index.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/UV%20index. Accessed 19 May. 2024.

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