| Acronym | Meaning |
| MICS | Magnetospheric Ion Compn. Spectrometer |
| SOPPA | Second-order Polarization Propagator Approxn. |
| SEL | Stacked Elemental Layer (vapor Deposition Technique) |
| GIT | Gastrointestinal Tract |
| MS-RHFR | Momentum-space Restricted Hartree-Fock-Roothaan |
| PROX | Preferential CO Oxidn. |
| CT | Disinfection Concentration Contact Time |
| CELIAS | Charge, Element And Isotope Analysis System |
| PITT | Partitioning Interwell Tracer Test |
| AFP | Antifreeze Protein |