| Acronym | Meaning |
| NCC | National Computing Center |
| LAER | Lowest Achievable Emission Rate |
| NEWWA | New England Water Works Association |
| EUROTRAC | European Experiment Of Transport And Transformation Of Environmentally Relevant Trace Constituents In The Troposphere Over Eur |
| CLP | Contract Laboratory Protocols (EPA) |
| APPH | Auger Peak To Peak Height |
| CV | Coeff. Of Variation |
| SMM | Spin Matrix Mapping |
| ABR | Auditory Brainstem Response |
| R-CNDO/1X | Relativistic Complete Neglect Of Differential Overlap (method) |