UPF

abbreviation for

ultraviolet protection factor: the effectiveness of clothing fabrics in protecting the skin from the sun’s ultraviolet UVA and UVB radiation, rated on a scale of increasing protectiveness, the number being the ratio of the radiation dose needed to produce minimal redness when wearing the fabric compared to the dose needed to produce the same redness when not wearing it:
A shirt with a UPF of 50 will reduce your ultraviolet exposure by 50 times (98% UV blockage).

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Word History and Origins

Origin of UPF¹

First recorded in 1985–90

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Example Sentences

Examples have not been reviewed.

One study, Teegarden pointed out, found a correlation between UPF consumption and accidental death — a statistical oddity that likely indicates residual confounding rather than causation.

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Yet even after accounting for factors such as body mass index, age, alcohol use and comorbidities, researchers found the association between UPF consumption and active psoriasis remained strong.

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The hoodie offers UPF 20+ sun protection and has a jersey-like breathable fabric.

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According to a new study in The Lancet Regional Health-Europe in which 300,000 people were observed over a decade, over 14,000 Type 2 diabetes cases were identified over the years in conjunction with a 10% "increment of total daily food intake from UPF."

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Twenty-four percent of participants said they were opposed to the idea of taxing UPF manufacturers, while 21% said they did not know.

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upend upfold

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