| Acronym | Meaning |
| NSS | National Stream Survey (USA) |
| ARF | ADP-ribosylation Factor |
| CPBA | Coulomb-projected Born Approximation |
| INTEGRAL | International Gamma-Ray Astrophysics Laboratory |
| FCD | Fault Consequence Digraph |
| CISP | Canadian Indoor Source Profile |
| RCISD | Restricted CI (with) Single (and) Double (excitations) |
| FMECA | Failure-mode Effects And Criticality Analysis |
| BLAISE | British Library Automated Information Service |
| REP | Radiological Emergency Planning |