PCR or pcr may refer to: Pathologic complete response (pCR), in neoadjuvant therapy Polymerase chain reaction COVID-19 testing, often performed using the polymerase chain reaction method Phosphocreatine, a phosphorylated creatine molecule Principal component regression, a statistical technique Protein/creatinine ratio, in urine Passport Carrier Release, telecommunications software Peak cell rate, on ATM networks Platform Configuration Register, a Trusted Execution Technology implemented using a TPM Processor Control Region, a Windows data structure Program clock reference, in MPEG transport streams XM PCR, a satellite receiver Parti Communiste Réunionnais or Communist Party of Réunion Partido Comunista Revolucionário or Revolutionary Communist Party Partido Cívico Renovador or Civic Renovation Party, Dominican Republic Partidul Comunist Român or Romanian Communist Party 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 Princess Connect! Re:Dive, a video game Police of the Czech Republic Partido Comunista Revolucionario (disambiguation) This disambiguation page lists articles associated with the title PCR.If an internal link led you here, you may wish to change the link to point directly to the intended article.