| Acronym | Meaning |
| EDWA | Exponential Distorted-wave Approxn. (atom-ion Electron-exchange Calcns.) |
| AOC | Administrative Order Of Consent |
| DIPPR | Design Institute For Physical Property Data |
| EPA | Extended Pair Approxn. (in Elec. Cond. Calcn.) |
| CBS | Cystathionine Beta-synthase |
| BID | Brinell Indentation Diameter |
| BERG | Building Effects Review Group |
| CASAC | Clean Air Scientific Advisory Committee (US EPA) |
| CMC | Ceramic Matrix Composite |
| FASTMAP | Fast Automatic Shimming Technique By Mapping Along Projections |