| Acronym | Meaning |
| SAGE | Stratospheric Aerosol And Gas Experiment |
| IBI | Index Of Biotic Integritypar |
| RRIM | Reinforced Reaction-injection Molding |
| NMRI | Nuclear Magnetic Resonance Imaging |
| RHF | Restricted Hartree-Fock |
| ARDS | Airborne Research Data System |
| ATRS | Attenuated Total Reflection Spectroscopy |
| RSNA | Renal Sympathetic Nerve Activity |
| ACTS | Advisory Committee On Toxic Substances |
| SDSS | Sloan Digital Sky Survey |