| Acronym | Meaning |
| NK | Natural Killer |
| NSOM | Near-field Scanning Optical Microscopy |
| NPL | National Priorities List |
| LGO | Light Gas Oil |
| PAN | Peroxyacetyl Nitrate |
| MWPC | Multiwire Proportional Chamber |
| ETGAO | Even-tempered Gaussian Atomic Orbital |
| CELIA | Competitive Enzyme-Linked Immunoassay |
| ISV | Initial Settling Velocity |
| WDD | Weighted Density Distribution |