sun protection factor

sun protection factor

n. Abbr. SPF

The degree to which a sunscreen, suntan lotion, or similar preparation protects the skin from ultraviolet rays, usually expressed numerically.

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sun protection factor

A measure, expressed numerically, of the degree to which a preparation containing sunscreen protects the skin from ultraviolet rays. The higher the value, the greater the level of protection from sun damage to the skin.

Thesaurus

Noun

1.

sun protection factor - the degree to which a sunscreen protects the skin from the direct rays of the sun SPF degree, level, grade - a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree"