| Acronym | Meaning |
| BHN | Brinell Hardness Number |
| SSNTD | Solid-state Nuclear Track Detector |
| SFCCCC | Space-fixed Complex-coordinate Coupled-channel Method |
| ACTH | Adrenocorticotrophic Hormone (reg:9003-56-9) |
| SBUV | Solar Backscatter UV Instrument |
| IPES | Inverse Photoemission Spectroscopy |
| LEGO | Lean Exhaust Gas Oxygen Sensor |
| MOS | Metal Oxide Semiconductor (FET Devices) |
| VSTEP | Vertical-to-surface Transmission Electrophotonic Device |
| XES | X-ray Emission Spectroscopy |