| Acronym | Meaning |
| SETB | Semiempirical Tight Binding |
| MCR | Metabolic Clearance Rate |
| EPS | Electric Power System |
| ASA | American Society Of Agronomy |
| AMNH | American Museum Of Natural History |
| IPA | International Pharmaceutical Abstracts |
| AA | Atomic Absorption |
| CMSA | Consolidated Metropolitan Statistical Area |
| CISC | Configuration Interaction (with) Size-consistency (correction) |
| OSBG | Optimized Support For Biological Growth |