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PRR may refer to: *
Parietal reach region The parietal reach region (PRR) is a region within the posterior parietal cortex of the macaque brain that is stimulated through reaching for an object. The PRR was initially proposed by Andersen and Buneo, but they just generally explored the id ...
, of the human brain *
Pattern recognition receptor Pattern recognition receptors (PRRs) play a crucial role in the proper function of the innate immune system. PRRs are germline-encoded host sensors, which detect molecules typical for the pathogens. They are proteins expressed, mainly, by cells of ...
, receptors of the innate immune system that identify pathogen-associated molecular patterns *
Pennsylvania Railroad The Pennsylvania Railroad (reporting mark PRR), legal name The Pennsylvania Railroad Company also known as the "Pennsy", was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. It was named ...
(reporting mark), an American railroad *
Personal Role Radio The H4855 Personal Role Radio (PRR) is a small UHF transmitter-receiver issued to the British Armed Forces. It is used by the British Army, Royal Marines, Royal Navy and the Royal Air Force Regiment. The radio has a range of 500 meters, ...
, a radio carried by UK troops * Populist radical right, a loose collection of political ideologies *
Porsche Rennsport Reunion The Porsche Rennsport Reunion is an automotive event and the world's largest meeting of classic Porsche racing cars and their drivers. Porsche has been organising the Rennsport Reunion since 2001 to honour its Porsche in motorsport, own motorsport ...
, an automotive event *
Princes Risborough railway station Princes Risborough station is a railway station on the Chiltern Main Line that serves the town of Princes Risborough in Buckinghamshire, England. It is operated by Chiltern Railways. History At one period there were four different railway rout ...
(National Rail station code), England *
Production Rule Representation The Production Rule Representation (PRR) is a proposed standard of the Object Management Group (OMG) to provide a vendor-neutral rule-model representation in UML for production rules as used in forward-chaining rule engines. History The OMG set ...
, a proposed computing standard *
Proportional reporting ratio The proportional reporting ratio (PRR) is a statistic that is used to summarize the extent to which a particular adverse event is reported for individuals taking a specific drug, compared to the frequency at which the same adverse event is reported ...
, a statistic used in data mining for health surveillance systems *
Pseudo-response regulator Pseudo-response regulator (PRR) refers to a group of genes that are important in the plant circadian oscillator. There are four primary PRR proteins (PRR9, PRR7, PRR5 and TOC1/PRR1) that perform the majority of interactions with other proteins with ...
, a group of genes that are important in the circadian oscillator of plants *
Pure Reason Revolution Pure Reason Revolution (PRR) is a British rock group formed at the University of Westminster in 2003. Their music incorporates elements of progressive rock and electronic. Their music has been variously described as 'Astral Folk' and 'Progressi ...
, a British rock group formed in 2003


See also

*
PRRS (disambiguation) PRRS can refer to: * Porcine reproductive and respiratory syndrome, a disease of pigs * Radical Socialist Republican Party, a former Spanish political party See also * PRR (disambiguation) {{disambiguation