| Acronym | Meaning |
| EDWA | Exponential Distorted-wave Approxn. (atom-ion Electron-exchange Calcns.) |
| PCU | Process Control Unit |
| FCC | Flight Control Computer |
| ROSE | Residual Organic Substance Emissions |
| ARCHIE | Automated Resource For Chemical Hazard Incident Evaluation |
| SFFF | Sedimentation Field Flow Fractionation |
| FEM | Field-Electron Microscopy |
| NSOM | Near-field Scanning Optical Microscopy |
| IMDL | Interlaboratory Method Detection Limits |
| PLFA | Phospholipid Fatty Acid |