PRR may refer to: Parietal reach region, of the human brain Pattern recognition receptor, receptors of the innate immune system that identify pathogen-associated molecular patterns Pennsylvania Railroad (reporting mark), an American railroad Personal Role Radio, a radio carried by UK troops Pichi Richi Railway, a heritage railway in South Australia Populist radical right, a loose collection of political ideologies Porsche Rennsport Reunion, an automotive event Princes Risborough railway station (National Rail station code), England Production Rule Representation, a proposed computing standard Proportional reporting ratio, a statistic used in data mining for health surveillance systems Pseudo-response regulator, a group of genes that are important in the circadian oscillator of plants Pure Reason Revolution, a British rock group formed in 2003 Rio-grandense Republican Party (Portuguese: Partido Republicano Rio-Grandense), a defunct Brazilian political party Pulse Repetition Rate, a term used for electrical signals such as sonar
==See also== PRRS (disambiguation)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).