| Meaning | Category |
| Pacific Monarch Resorts | Business->Firms |
| Palmerston, North Island, New Zealand | Regional->Airport Codes |
| Partial Metabolic Response | Medical->Physiology |
| Peak Message Rate | Computing->Networking |
| Peking Mukden Railway | Governmental->Transportation |
| Peperiksaan Menengah Rendah | Regional->Countries |
| Performance Measurement Report | Governmental->NASA |
| Performance Monitor Data | Computing->File Extensions |
| Perinatal Mortality Rate | Medical->Hospitals |
| Perpendicular Magentic Recording | Computing->Hardware |
| Personal Mobile Radio | Computing->Telecom |
| Polymyalgia Rheumatica | Medical->Physiology |
| Poor Man's Red | Miscellaneous->Colors |
| Post-Mortem Redistribution | Medical->Physiology |
| Private Mobile Radio | Academic & Science->Amateur Radio |
| Problem Management Record | Computing->General |
| Productive Merchandise Recovery | Business->General |
| Professional Medical Representatives | Medical |
| Program Manager's Review | Governmental->NASA |
| Project Management Review | Governmental->Military |
| Provisioning Master Record | Governmental->Military |
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