| Acronym | Meaning |
| MCPF+R | Modified Coupled-pair Functional (method With) Relativistic (correction) |
| LCGTO | Linear Combination Of Gaussian Type Orbitals |
| ATLAS | Atmospheric Laboratory For Applications And Science |
| SCM | Spherical Cellular Model |
| CIRRIS | Cryogenic InfraRed Radiance Instrument For Shuttle |
| OFW | Organic Free Water |
| DIAL | Differential Absorption Lidar (laser Radar Sensing) |
| IWSA | International Water Supply Association |
| NMAM | NIOSH Manual Of Analytical Methods |
| BBO | Beta-barium Borate |