| Abbreviation | Definition |
|---|---|
| PMCL | Precision Measurement and Control Laboratory |
| PMCL | Precision Motion Control Laboratory |
| PMDL | Photonic Materials and Devices Laboratory |
| PMEL | Pacific Marine Environmental Laboratory |
| PMEL | Precision Measurement Equipment Laboratory |
| PMJ | Postgraduate Medical Journal |
| PML | personal mechatronics laboratory |
| PML | Precision Machining Laboratory |
| PMN | PolyMorphoNuclear |
| PMRL | Particulate Media Research Laboratory |
| PMS | Phenazine Methosulphate |
| PMTCT | Prevention of Mother To Child Transmission |
| PMTL | Placer Mineral Testing Laboratory |
| PNA | Pharmaceutical Needs Assessment |
| PNA | Purine Nucleoside Analogue |
| PND | Post-Nasal Drip |
| PNI | Psychiatric Neuro- Imaging |
| PNI | PsychoNeuro Immunology |
| PNNL | Pacific Northwest National Laboratory |
| PNPC | Problems and Needs in Palliative Care (clinical study) |