| Acronym | Meaning |
| ACTS | Advisory Committee On Toxic Substances |
| LRAT | Lecithin-retinol Acyltransferase |
| AOB | Adiabatic Oxygen Bomb (calorimeter) |
| ASFF | Aerated Stationary Or Submerged Fixed-film (wastewater Treatment) |
| MCI | Mild Cognitive Impairment |
| HCPA | Homomorphic Cluster Coherent Potential Approximation |
| FEOE | Full Equalization Of Orbital Electronegativity |
| GAO | General Accounting Office |
| TPAD | Temperature Programmed Ammonia Desorption |
| TCA | Total Constituent Analysis |