| Acronym | Meaning |
| SADVR | Symmetry-adapted Discrete Variable Representation (in Mol. Wave Function Calcn. For Nuclear Motion On A Given PES) |
| TEMA | Tubular Exchanger Manufacturers Assocn. |
| SADPT | Symmetry-adapted Double Perturbation Theory |
| DELFIA | Dissociation-enhanced Lanthanide Fluoroimmunoassay |
| PSRP | Process To Significantly Reduce Pathogens (of EPA) |
| NMDS | Nonmetric Multidimensional Scaling |
| UNO-CAS | Unrestricted Natural Orbital-complete Active Space |
| SIA | Self-interstitial Atom |
| HAPEX | Hydrological And Atmospheric Pilot Experiment |
| TNS | 6-p-Toluidino-2-naphthalenesulfonic Acid |