Governmental & Military Abbreviations and Acronyms
- Organ.Chemorganic chemistry
- P.2dPacific Reporter, 2nd Series
- P.3dPacific Reporter, 3rd Series
- Paraphrparaphrase
- Parasitolparasitology
- PARCCprecision, accuracy, representativeness, completeness, and comparability
- PARLArea Control Center
- PARLParliament
- ParnassParnassus
- PatholPathological
- PeninsPeninsula
- PharmaceutPharmaceutical
- PhiladPhiladelphia
- PM-2.5Particulate Matter of Diameter Less Than 2.5 Micrometers
- POL. ECON.Political Economy
- PolarsternResearch Vessel
- POSEIDONSatellite programme
- PPL. A.Participial Adjective
- PPL. ADJ.Participial Adjective
- PPL. ADJS.participial adjectives
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