| Acronym | Meaning |
| RMR | Resting Metabolic Rate |
| ICC | Interstitial Cells Of Cajal |
| WDI | World Drug Index |
| CCAM | Charge-conserving Approxn. Method (for Quantum Calcns.) |
| GRIP | Greenland Ice Core Project |
| IF | Interstitial Free |
| ESQC | Elastic Scattering Quantum Chemistry |
| IX | Ion Exchange |
| CHMM | Certified Hazardous Materials Manager |
| EIL | Environmental Impairment Liability |