| Acronym | Meaning |
| TOM | Transition Operator Method |
| EFM | Electric Force Microscopy |
| PESC | Photoelectrochemical Solar Cell |
| BOPF | Basic Oxygen Process Furnace |
| IJC | International Joint Commission |
| FSSW | Friction Super Stir Welding |
| ANS | American National Standard |
| DRAWS | Dipolar Recoupling With A Windowless Sequence |
| UFL | Upper Flammable Limit |
| CSA | Coupled Static Approxn. (in Scattering Calcns.) |