| Acronym | Meaning |
| RMP | Radon Measurement Proficiency |
| CMC | Conditional Moment Closure [model] |
| HZ | Hertz (one Cycle Per Second) |
| NLXC | Nonlocal Exchange Correlation (potential) |
| TAL | Threshold Ambient Level |
| TOSS | Total Suppression Of Sidebands |
| VMT | Vehicle Miles Traveled |
| SCPI | Standard Commands For Programmable Instruments |
| SRXFA | Synchrotron Radiation X-ray Fluorescence Analysis |
| ADW | Asymptotic Distorted Wave |