PRF may refer to:

Science and technology

* Physical register file, in CPU design * Platelet rich fibrin *

Pontine reticular formation The reticular formation is a set of interconnected nuclei that are located throughout the brainstem. It is not anatomically well defined, because it includes neurons located in different parts of the brain. The neurons of the 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 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 friends of Sam Berns, a chi ...

Business

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

crop insurance Crop insurance is purchased by agricultural producers, and subsidized by the federal government, to protect against either the loss of their crops due to natural disasters, such as hail, drought, and floods, or the loss of revenue due to declines ...

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