| Acronym | Meaning |
| ESEM | Electron Spin Echo Modulation |
| EVA | Extravehicular Activity (related To Spacecraft) |
| NCE | New Chemical Entity |
| TAS | Total Analysis Systems |
| PMF | Progressive Massive Fibrosis |
| APC | American Plastics Council |
| RECLAIM | Regional Clean Air Incentives Market |
| DAST | Diethylaminosulfur Trifluoride |
| LCLS | Linac Coherent Light Source |
| MCP | Microchannel Plate |