| Acronym | Meaning |
| PGNP | Prompt Gamma Neutron Probe |
| SPF | Simons-Parr-Finlan (potential Function) |
| CCE | Charge Composition Explorer |
| DAFS | Diffraction Anomalous Fine Structure |
| DNS | Direct Numerical Simulation |
| CSVC | Computer System Validation Committee |
| ACLSV | Apple Chlorotic Leaf Spot Virus |
| PDR | Photon-dominated Region |
| TOSS | Total Suppression Of Sidebands |
| FCV | Feline Calicivirus |