Dictionary

SPF en · ADJ

Meanings

1. (abbreviation, alt-of, initialism, not-comparable, of laboratory animals) Initialism of specific-pathogen-free.
   alt of specific-pathogen-free

wikidata: Q491171

SPF en · NOUN

Meanings

1. (abbreviation, alt-of, countable, initialism, uncountable) Initialism of sun protection factor.
   alt of sun protection factor
   • Most dermatologists, as well as the American Academy of Dermatology, recommend an SPF of at least 30 for most people and most climates. 2022 July 21, Nancy Redd, “How much SPF is enough?”, in The New York Times, →ISSN:
   • For the rest of us, each day’s variable solar conditions require a judgment call. And probably sunscreen, whose SPF (sun protection factor) numbers reveal how effective the product is. A lotion with an SPF of 10, for example, tells us that if current conditions would give you a burn in one hour, the sunscreen will forestall the burn for ten hours. Most sunscreens use either titanium dioxide or zinc oxide, chemicals that reflect, scatter, or absorb ultraviolet light and dissipate it as heat. In practice, creams labeled SPF 30 provide 96 percent of the protection of an SPF 90 product, which suggests that you’ll do fine with a 30 as long as you keep reapplying it as needed during the day. 2017, Bob Berman, Zapped: From Infrared to X-rays, the Curious History of Invisible Light, Little, Brown and Company, →ISBN, page 60:
2. (abbreviation, alt-of, countable, initialism, uncountable) Initialism of single point of failure.
   alt of single point of failure
3. (abbreviation, alt-of, countable, initialism, uncountable) Initialism of spray polyurethane foam.
   alt of spray polyurethane foam
4. (abbreviation, alt-of, countable, initialism, uncountable) Initialism of spruce-pine-fir, mixed softwood timber.
   alt of mixed softwood timber
   alt of spruce-pine-fir

Forms

Hypernyms

w:polyurethane foam · foam

Relateds

SPOF

wikidata: Q1363179 · wikidata: Q1421262

SPF en · PROPN

Meanings

1. (abbreviation, alt-of, initialism) Initialism of Scottish Police Federation.
   alt of Scottish Police Federation
2. (Internet, abbreviation, alt-of, initialism) Initialism of Sender Policy Framework.
   alt of Sender Policy Framework
3. (abbreviation, alt-of, initialism) Initialism of Singapore Police Force.
   alt of Singapore Police Force

wikidata: Q7437902 · wikidata: Q1569151