| Acronym | Meaning |
| SA-CAS-SCF | State-averaged-complete Active Space-SCF |
| SIS | Stepwise Isothermal Segregation |
| ACANTO | Activation Analysis For Toxicology |
| RFC | Inhalation Reference Concentration |
| SENSOR | Sentinel Event Notification Systems For Occupational Risks |
| SAIS | Science And Applications Information System |
| BIIR | Brominated Isobutene-isoprene Rubber |
| AAMI | Association For The Advancement Of Medical Instrumentation |
| SRBSN | Sintered Reaction-bonded Silicon Nitride |
| GGA | Generalized Gradient Approxn. |