| Acronym | Meaning |
| HIT | Hazard Information Transmission |
| 7-ACA | 7-aminocephalosporanic Acid |
| ESAA | Earth Science Advanced Aircraft |
| RAG | Risk Assessment Guideline |
| ERS | Elastic Recoil Spectrometry |
| LEACHMP | Leaching Estimation And Chemistry Model-pesticides |
| DSCCR | Diffractive Sudden-closed Coupled Rotation (for Mol.-surface Scattering Calcns.) |
| PPH | Parts Per Hundred |
| IECT | Impulsive Ergodic Collision Theory |
| AKH | Adipokinetic Hormone |