| Acronym | Meaning |
| MARIS | Mississippi Automated Resource Information System |
| TNS | 6-p-Toluidino-2-naphthalenesulfonic Acid |
| CEFIC | Associazione Europea Dell'industria Chimica |
| 2PH TDA | Two-particle-hole Tamm-Dancoff Approximation (for Closed-shell |
| MAESA | Measurements For Assessing The Effects Of Stratospheric Aircraft |
| AMBR | Anaerobic Migrating Blanket Reactor [for Wastewater Treatment] |
| NSSDC | National Space Science Data Center |
| DFTS | Dispersive Fourier Transform Spectrometry |
| DDRPA | Double Direct Random Phase Approximation |
| CRDS | Chemical Reactions Documentation Service |