| Acronym | Meaning |
| DWPI | Derwent World Patents Index |
| REM | Rapid Eye Movement |
| FMM | Fast Multipole Method (algorithm For Coulomb Interactions Among Charge Distributions) |
| FOS | First-order Sudden |
| CAT | Computer-aided Tomography |
| INDOEX | Indian Ocean Experiment |
| CFE | Coherent Forward Emission |
| XPS | X-ray Photoelectron Spectroscopy |
| HDD | Hard Disk Drive |
| AHCPR | Agency For Health Care Policy And Research |