PCR or pcr may refer to:

Science

* Phosphocreatine, a phosphorylated creatine molecule * Principal component regression, a statistical technique

Medicine

COVID-19 testing COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2. The two main types of tests detect either the presence of the virus or antibodies produced in response to infection. Molecular tests for viral ...

, often performed using the polymerase chain reaction method * Protein/creatinine ratio, in urine * Pathologic complete response (pCR), in neoadjuvant therapy

Technology

Passport Carrier Release Passport Carrier Release (PCR) is a version of the Passport Switch (now Multiservice Switch) software designed to run in telecommunications carrier environments. It was formerly developed by Nortel. After the sale in 2009 of most Nortel's assets, t ...

, telecommunications software *

Peak cell rate If a network service (or application) wishes to use a broadband network (an ATM network in particular) to transport a particular kind of traffic, it must first inform the network about what kind of traffic is to be transported, and the performanc ...

, on ATM networks * Platform Configuration Register, a Trusted Platform Module component *

Program clock reference MPEG transport stream (MPEG-TS, MTS) or simply transport stream (TS) is a standard digital container format for transmission and storage of audio, video, and Program and System Information Protocol (PSIP) data. It is used in broadcast syste ...

, in MPEG transport streams *

Processor Control Region Processor Control Region (PCR) is a Windows kernel mode data structure that contains information about the current processor. It can be accessed via the fs segment register on x86 versions, or the gs segment register on x64 versions respectively. S ...

, a Windows data structure * XM PCR, a satellite receiver

Political parties

* ''

Parti Communiste Réunionnais Parti may refer to: *Parti (surname), a Hungarian surname, and a list of people with the name * ''Parti'' (architecture), the organizing concepts behind an architect's design * *, a lake in Russia See also *Partie (disambiguation) *Party (disambi ...

'' or Communist Party of Réunion * '' Partidul Comunist Român'' or Romanian Communist Party * '' Partido Comunista Revolucionário'' or Revolutionary Communist Party * '' Partido Cívico Renovador'' or Civic Renovation Party, Dominican Republic

Other uses

* Put/call ratio, in finance * Amdo Tibetan (ISO 639 code pcr), a language * Germán Olano Airport (IATA code PCR), Colombia * Palestinian Center for Rapprochement between Peoples, Palestine * Pancritical rationalism, a development of critical rationalism and panrationalism * Paul Cruickshank Racing, an Australian motor racing team * Police control room, an emergency control centre * '' Practical Chinese Reader'', a textbook * Production control room, of a television studio