- PCMS
- Portable Changeable Message Sign (Governmental » Transportation)** P-Com, Inc. (Business » NASDAQ Symbols)** Princeton Community Middle School (Community » Schools)** Pierce County Medical Society (Medical » Hospitals)* Philadelphia County Medical Society (Medical » Hospitals)* Petroleum Chemicals Marketing Services (Business » Firms)* Plasma Chemistry Monte-Carlo Simulation (Academic & Science » Electronics)
Abbreviations dictionary. 2012.