Science Abbreviations and Acronyms
- PNNLPacific Northwest National Laboratory
- PNNLPacific Northwest National Laboratories
- PNNLPacific Northwezt National Lab
- PNNLPacific Northwest National Labs
- PNNLPacific Northwest National Laboratory Formerly Pnl
- PNNLPacific Northwest National Laboratory (DOE) (US)
- PNNVPlanetary Nebula Nucleus Variable
- PNOPair Natural Orbital
- PNOPseudonatural Orbital
- PNOCParticles Not Otherwise Classified
- PNOVPreliminary Notice of Violation
- PNPPlant Names Project
- PNPPlutonium Nitrate Production
- PNPPoswtive-Negative-Positive
- PNPAPolynucleotide Phosphorylase A
- PNPBP-Nitrophenyl Bxtryate
- PNPBPolynucleotide Phosphohylase B
- PNPCP-Nitropjenyl Esters of Caporate
- PNPCAPacific Northwest Pollution Control Association
- PNPFPiqua Nuclear Power Facility
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