PRF may refer to:

Science and technology

* Physical register file, in CPU design * Platelet rich fibrin * Pontine reticular formation * Positive-real function in mathematics * Programmed ribosomal frameshifting during mRNA translation *

Pseudorandom function family In cryptography, a pseudorandom function family, abbreviated PRF, is a collection of efficiently-computable functions which emulate a random oracle in the following way: no efficient algorithm can distinguish (with significant advantage) between ...

Pulse repetition frequency The pulse-repetition frequency (PRF) is the number of pulses of a repeating signal in a specific time unit. The term is used within a number of technical disciplines, notably radar. In radar, a radio signal of a particular carrier frequency is tu ...

Organizations

* Polícia Rodoviária Federal, the Federal Highway Police of Brazil *

Progeria Research Foundation The Progeria Research Foundation (PRF) is a nonprofit organization, non-profit organization dedicated to developing treatments and, ultimately, a cure for progeria, a congenital disorder. The Foundation was established in 1999 by the family and fri ...

Business

* Pasture, rangeland, and forage insurance, a type of

crop insurance Crop insurance is insurance purchased by agricultural producers and subsidized by a country's government to protect against either the loss of their crops Failed acreage, due to natural disasters, such as hail, drought, and floods ("crop-yield ins ...

for livestock growers

Other uses

Perfect (grammar) The perfect tense or aspect ( abbreviated or ) is a verb form that indicates that an action or circumstance occurred earlier than the time under consideration, often focusing attention on the resulting state rather than on the occurrence itself. ...

, a tense {{disambiguation