| Acronym | Meaning |
| MBRSPT | Many-body Rayleigh-Schroedinger Perturbation Theory |
| IWS | Ionizing Wet Scrubber |
| FEBIAD | Forced Electron Beam Induced Arc Discharge |
| PPHM | Parts Per Hundred Million |
| CDER | Center For Drug Evaluation And Research |
| SPAD | Single Photon Avalanche Diode |
| TPSA | Topological Surface Area |
| ETP | Environmental Tracking Procedure |
| RIFT | Resin Infusion Under Flexible Tooling [plastics Molding] |
| FEEO | Fuel Efficient Engine Operation |