| Acronym | Meaning |
| PMTDI | Provisional Maximum Tolerable Daily Intake |
| MSPC | Multivariate Statistical Process Control |
| LVBS | Linear Variational Basis Set (formalism In Calcns. On Scattering) |
| SS | Space Station |
| DLA | Diffusion-Limited Aggregation |
| NKB | Nachklarbecken; Secondary Settling Tank |
| SNR | Supernova Remnant |
| MAAC | Maximum Ambient Air Concentration |
| CEF | Crystal Electric Field |
| PAM | Periodic Anderson Model |