| Acronym | Meaning |
| MECA | Molecular Emission Cavity Analysis |
| CPI | Chemical Patents Index |
| RFA | Renormalized Free Atom (model |
| GVB-INIT | Generalized Valence Bond-initial (guess Wave Function) |
| COHMAP | Cooperative Holocene Mapping Project |
| PDSA | Peroxydisulfuric Acid |
| LCI-SCSCFMO | Limited Configuration Interaction Single-configuration SCF MO |
| ENA | Energetic Neutral Atoms (astronomical Plasmas) |
| POES | Polar Orbiting Environmental Satellites |
| RLP | Reactive Liquid Polymer |