| Acronym | Meaning |
| MOPA | Master Oscillator Power Amplifier |
| NCI | National Cancer Institute |
| SNF | Spent Nuclear Fuel |
| EST | Eastern Standard Time |
| MECC | Micellar Electrokinetic Capillary Chromatography |
| CSDW | Centrifugal Sudden (or Coupled States) Distorted Wave (methodfor Reactive Mol. Collisions) |
| ICOM | International Congress On Membranes |
| PFBC | Pressurized Fluidized-bed Combustion (in Energy Technology) |
| GRM | Geopotential Research Mission (USA Satellite) |
| PITST | Path Integral Transition State Theory |