| Acronym | Meaning |
 | CISDQ | Configuration Interaction With Single |
 | DHT | Down-hole Temperature |
 | TBN | Total Base Number |
 | SBE | Starch Branching Enzyme |
 | IDT | Interdigital Transducer |
 | CID | Configuration Interaction With Double Substitution |
 | PAHO | Pan American Health Organization |
 | DMICS | Design Methods For Integrated Control Systems [propulsion] |
 | MTX(ALPHA) | Muffin-tin X(alpha) Statistical Exchange |
 | FEBO | Free Energy Born-Oppenheimer |