| Acronym | Meaning |
| CBRNE | Chemical, Biological, Radiological, Nuclear, Explosive |
| RRGM | Recursive Residue Generation Method |
| FEGO | Floating Ellipsoidal Gaussian Orbital |
| NPDWR | National Primary Drinking Water Regulations |
| CIGARS | Calibrated Infrared Ground/air Radiometric Spectrometer |
| UPS | UV Photoelectron Spectroscopy |
| TRAP | Telomeric Repeat Amplification Protocol |
| AVA | Anthrax Vaccine Adsorbed |
| ECISDT | Size-extensive CI With Single And Double And Triple Excitations |
| HSA | Hyperspherical Adiabatic (for Resonances In Electron-atom Scattering. Energy Levels |