From Wikipedia, the free encyclopedia
PRF may refer to:
Science and technology
- Platelet rich fibrin, a combination of platelets and fibrin used to regenerate tissue; see platelet-rich plasma
- Pontine reticular formation
- Primitive recursive function, a class of functions which form an important building block on the way to a full formalization of computability
- Pseudorandom function family, in cryptography is a function with values seemingly chosen randomly within its range
- Pulse repetition frequency, a characteristic of a radar transmitter
- Pennsylvania Renaissance Faire, USA
- Passer rating formula, a system used to rate passers in American football
- Polícia Rodoviária Federal, the Federal Highway Police of Brazil
- Pacific Ring of Fire, a ring of volcanoes circling the Pacific Ocean
- Progeria Research Foundation, a non-profit research organization
- PRF-3, the call letters of the now defunct TV Tupi, Brazil's first television station
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