| Acronym | Meaning |
| MAG | Metal Arc Gas (welding) |
| POH | Purgeable Organic Halogen(s) |
| AFP | Antifreeze Protein |
| MSA | Mammary Serum Antigen |
| CARE | Computed-aided Risk Evaluation |
| AADO | Angular (momentum Conservation) Average Dipole Orientation Theory (in Io-mol. Reactions) |
| CTF | Contrast-transfer Function |
| PPA | Pollution Prevention Act (of 1990) |
| BFT | Bonded Function Theory |
| RCO | Regenerative Catalytic Oxidizer |