There are multiple definitions:

1. polymerase chain reaction(English)

   • converts very low quantities of DNA into very high quantities and is the foundation of many specialized techniques of molecular biology
   • Abbreviation may be used in Am. Soc. Physiol. journals without definition.
   • LCR, LM-PCR, qRT, iPCR, SLIC, PULB, dPCR, ddPCR, nPCR, PCR-HRMA, C-PCR
   • Physiology, Clinical chemistry, Molecular biology
   • https://doi.org…1-62703-715-0_7

2. peripheral chemoreceptor(English)

   • CCR
   • Receptors

3. Paris Course on Revascularization(English)

   • PCI
   • Coronary circulation
   • https://www.pcr…Courses/EuroPCR

4. plaque control record(English)

   • a common and simple method of recording the presence of plaque on mesial distal, facial, and lingual surfaces at the gingival margin. Corresponding index is calculated by dividing the number of plaque-containing surfaces by the total number of available surfaces
   • PHP
   • Dentistry
   • https://doi.org…3690-018-0296-y

5. posterior capsular rupture(English)

   • CCC, FLACS, PPC, logMAR, NOD, VA
   • Ophthalmology, Pathology
   • https://doi.org…/ijo.IJO_932_19
   • https://doi.org…1433-019-0389-z

6. posterior capsular rent(English)

   • AS-OCT, FLACS, PC, PCR, PPC
   • Ophthalmology
   • https://doi.org…000000000000048

7. protein catabolic rate(English)

   • nPCR, MHD, nPNA
   • Nephrology, Proteins / proteomics
   • https://doi.org…jren.2003.50005

8. pathological complete remission(English)

   • TRAE, MPR, TRG
   • Oncology, Prognosis, Pathology
   • https://doi.org…mu.2024.1339757