| Acronym | Meaning |
| NOET | NASA Operational Environment Team |
| SI | Stieltje Imaging (method For Calcg. Wave Functions) |
| FO-ECP | Frozen Orbital-effective Core Potential |
| CFRT | Continuous Fiber Reinforced Thermoplastic Composite |
| NCSCI | National Center For Standards And Certification Information |
| ICEAS | Intermittent Cycle Extended Aeration System (activated Sludge) |
| DPF | Diesel Particulate Filter |
| ACANTO | Activation Analysis For Toxicology |
| JANAF | Joint Army Navy Air Force |
| HGDB | Hydrogeologic Database |