| Acronym | Meaning |
| PTS | Pressure Tuning Spectroscopy |
| HDD | Hard Disk Drive |
| NAMF | Non-asbestos Mineral Fibers |
| AQDHS | Air Quality Data Handling System |
| TEOS | Tetraethyl Orthosilicate |
| MCFC | Molten Carbonate Fuel Cells |
| DAS | Dendrite Arm Spacing |
| ETS | Extended Transition State (method For Bond Dissocn. Energies) |
| HSX | Helically Symmetric Experiment |
| SSSD | Small-scale, Short-duration |