| Acronym | Meaning |
| MASIF | Measurement And Analysis Of Surface Interaction Forces |
| EFRTS | External-floating-roof Tanks |
| NRD | Natural Resource Damage |
| IVA | Intravehicular Activity (related To Spacecraft) |
| URT | Upper Respiratory Tract |
| GLWQA | Great Lakes Water Quality Agreement |
| TSR | Thermal Shock Resistance |
| RCCSD | (spin) Restricted CCSD |
| BID | Buoyancy Induced Dispersion |
| OLPA | Orbital Local Plasma Approxn. (in Stopping Power Calcn. For Ions By Films) |