| Acronym | Meaning |
| IRS | Internal Recognition Subsequence |
| SNAP | Soluble NSF Attachment Protein |
| XAFS | X-ray Absorption Fine Structure |
| CBC | Circulating Bed Combustor (or Incinerator) |
| AAAI | American Association For Artificial Intelligence |
| COADS | Comprehensive Ocean-Atmosphere Data Set |
| PVDF | Polyvinylidene Difluoride |
| GPD | Gaussian Phase Distribution |
| PNA | Polynuclear Aromatic Compound(s) |
| ZDDO | Zero Diatomic Differential Overlap |