| Acronym | Meaning |
| DHOT | Double-heterojunction Optical Thyristor |
| ECNIMS | Electron Capture Negative Ionization Mass Spectrometry |
| POC | Purgeable Organic Carbon |
| LIFR | Leukemia Inhibitory Factor Receptor |
| OTC | Ozone Transport Commission |
| MON | Motor (method) Octane No. |
| FBL | Fixed Bed Loop |
| IOSRR | Infinite Order Sudden Rigid-rotor Approximation |
| LECIVA | Low Energy Charge-induced Voltage Alteration |
| RBM | Radial Breathing Mode |