PCR or pcr may refer to:
==Science and medicine== 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 Yes
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).