| Acronym | Meaning |
| AMT | Audio-magneto-telluric Method |
| AOB | Analytical Operations Branch (OSWER) |
| DASD | Direct Access Storage Device |
| NDPK | Nucleoside Diphosphate Kinase |
| CERES | Cloud And The Earth's Radiant Energy System |
| UARS | Upper Atmosphere Research Satellite |
| DFA | Dual Fouling Apparatus |
| MECI | Multielectron Configuration Interaction |
| GRAS | Generally Recognized As Safe |
| IDA | Isotope Dilution Analysis |