| Acronym | Meaning |
| ACO | Atomic-cell Orbital |
| OPTS | Office Of Pesticides And Toxic Substances (USEPA) |
| SPV | Surface Photovoltage |
| ACTH | Adrenocorticotrophic Hormone (reg:9003-56-9) |
| BIMOS | Bipolar Metal-oxide Semiconductor |
| UTAO | Undistorted Traveling Atomic Orbital |
| DOP | Degree Of Pyritization |
| FOE | First-order Exchange (in Electron-atom Scattering Calcn.) |
| MSPD | Matrix Solid-Phase Dispersion |
| OBD | Optical Beam Deflection |