| Acronym | Meaning |
| IRDO | Intermediate Retention Of Differential Overlap |
| CJD | Creutzfeldt-Jakob Disease |
| EIS | Emissions Inventory System (US EPA Air Database) |
| WENDB | Water Enforcement National Data Base |
| AIHA | American Industrial Hygiene Association |
| MECA | Multiple Excitation Collisional Activation |
| ISI | Institute For Scientific Information |
| FIMS | Fine-split IR Multispectral Scanner (for Remote Sensing) |
| SPC | Solid Phase Crystallization |
| NBRF | National Biomedical Research Foundation |