| Acronym | Meaning |
| HOS | Hydrocarbon Oxidation Studies |
| EP | Electrical Power |
| CAL | Cray Assembly Language |
| KBPS | Kilobits (103) Per Second |
| TRANET | Tracking Network |
| ALA-O | Delta-aminolevulinic Acid Dehydrates |
| ECP | Engineering Change Proposal |
| IGACP | International Global Atmospheric Chemistry Program |
| ISWS | Illinois State Water Survey |
| PC | Geomagnetic Pulsations |