| Acronym | Meaning |
| DCTL | Direct Coupled Transistor Logic |
| DWIOS | Distorted Wave Infinite Order Sudden Approximation |
| FO-NACME | First-order Nonadiabatic Coupling Matrix Elements |
| AASD | Anaerobic Activated Sludge Digestion |
| RDS | Reflectance-difference Spectroscopy |
| ESCR | Environmental Stress Cracking Resistance |
| SA-LCAO | Symmetry-adapted Linear Combination Of Atomic Orbitals |
| EDPCR | Extended Disjoint Principal Components Regression |
| MAGE | Melanoma-associated Antigen-encoding Gene |
| SOM | Soil Organic Matter |