| Acronym | Meaning |
| C4S | Chemical Shift-specific Slice Section |
| WCUB | Wang Chang-Uhlenbeck-de Boer (quantum-mech. Relation In Rotational Relaxation Calcn.) |
| ALMA | Atacama Large Millimeter Array |
| NMC | New Muon Collaboration |
| GLWQB | Great Lakes Water Quality Board |
| SCAMPI | Statistical Classification Of Activities Of Molecules For Pharmacophore Identification |
| ANRHRD | Air Noise Radiation Health Research Division |
| RAM | Renormalized Atom Model (for Electronic-structure Calcns.) |
| NCSE | National Council For Science And The Environment |
| AFBS | Anaerobic Fluidized Bed Systems |