| Acronym | Meaning |
| CAPCA | Closure And Postclosure Activity |
| ODCPA | Off-diagonal (disorder) Coherent-potential Approxn. |
| ARMS | Angle-resolved Mass Spectrometry |
| WPI | Waste Policy Institute |
| TDPT | Time-dependent Perturbation Theory |
| ABXP | Ab Initio Dv-x.alpha. Point Charge Approxn. (in Solid Surface Electronic Structure Calcn.) |
| SCOPE | Scientific Committee On The Problems Of The Environment |
| TDM | Time-division Multiplexing |
| NRA | Neutron Reaction Analysis |
| RISM | Reference Interaction Site Model |