PSR may refer to:

Organizations

* Pacific School of Religion, Berkeley, California, US * Palestinian Center for Policy and Survey Research * Physicians for Social Responsibility, US ;Political parties: * Revolutionary Socialist Party (Portugal) (''Partido Socialista Revolucionário'') *

Romanian Socialist Party (present-day) The Romanian Socialist Party ( ro, Partidul Socialist Român) is a political party in Romania formed as the Socialist Alliance Party (PAS) in 2003. It developed out of the wing of the Socialist Party of Labour (PSM) that objected to the merger ...

Places

* Abruzzo Airport (IATA airport code), near Pescara, Italy *

Pasir Ris MRT station Pasir Ris MRT station is an elevated Mass Rapid Transit (MRT) station on the East West line (EWL) in Pasir Ris, Singapore. Situated along Pasir Ris Central adjacent to Pasir Ris Bus Interchange and the White Sands Shopping Mall, it is the ...

(MRT station abbreviation), Singapore *

Pioneer Scout Reservation The Richard P. Anderson Pioneer Scout Reservation also known as Pioneer Scout Reservation (PSR) and Camp Frontier was opened in 1969 by Erie Shores Council. It is a Boy Scout camp in northwest Ohio and southeast Michigan just west of Pioneer, Ohio ...

, a Boy Scout camp in Ohio, US

Science and technology

Pulsar A pulsar (from ''pulsating radio source'') is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing toward Ea ...

, a kind of star *

Primary radar A Primary radar (PSR Primary Surveillance Radar) is a conventional radar sensor that illuminates a large portion of space with an electromagnetic wave and receives back the reflected waves from targets within that space. The term thus refers to a r ...

* Perimeter surveillance radar *

Posthumous sperm retrieval Posthumous sperm retrieval (PSR) is a procedure in which spermatozoa are collected from the testes of a human corpse after brain death. There has been significant debate over the ethics and legality of the procedure, and on the legal rights of the ...

from dead men

Computing

* PHP Standard Recommendation * Predictive state representation of a system * Problem Steps Recorder, psr.exe, a Microsoft utility * Panel Self-Refresh in Embedded DisplayPort

Law enforcement and military

* US

Precision Sniper Rifle The Precision Sniper Rifle (PSR) was a program by United States Special Operations Command to replace all bolt-action sniper rifles in use by United States special operations snipers with a single bolt-action rifle chambered for a large caliber Ma ...

* PSR-90, a Pakistani Precision Sniper Rifle

Other uses

* Portuguese Sign Language (ISO 639-3 language code) *

Potential support ratio The potential support ratio (PSR) is the number of people age 15–64 per one older person aged 65 or older. This ratio describes the burden placed on the working population (unemployment and children are not considered in this measure) by the non ...

, in demographics * Precision scheduled railroading, also known as Precision railroading, a concept in rail freight transport * Price–sales ratio of stocks * Primitive Survival Rating, on the Discovery Channel TV series ''

Naked and Afraid ''Naked and Afraid'' is an American reality series that airs on the Discovery Channel. Each episode chronicles the lives of two survivalists who meet for the first time naked and are given the task of surviving a stay in the wilderness for 21 d ...

'' *

Principle of sufficient reason The principle of sufficient reason states that everything must have a reason or a cause. The principle was articulated and made prominent by Gottfried Wilhelm Leibniz, with many antecedents, and was further used and developed by Arthur Schopenhau ...

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