| Acronym | Meaning |
| IERM | Intermediate Energy R-matrix (theory In Scattering Calcns.) |
| BCKD | Branched-chain Alpha-ketoacid Dehydrogenase |
| AQDM | Air Quality Display Model |
| IMC | Intermetallic Matrix Composite |
| AURA | Association Of Universities For Research In Astronomy |
| MISA | Municipal-Industrial Strategy For Abatement |
| MCGR | Monte-Carlo Renormalization Group |
| PNA | Peptide Nucleic Acid |
| OMNMHCE | Organic Material Nonmethane Hydrocarbon Equivalent |
| AFR | Air To Fuel Ratio |