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Meaning of SPF

SPF

Pronunciation: [key]
  1. sun protection factor: the effectiveness of suntanning preparations in protecting the skin from the harmful effects of the sun's ultraviolet radiation, as rated on a scale of increasing protectiveness from 2 to 15 or sometimes higher.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
  • spf (Thesaurus)