| Acronym | Meaning |
| IMOA | Iterative Maximum Overlap Approximation |
| SRP | Soluble Reactive Phosphorus |
| ERIS | Electrostatic Reflex Ion Source |
| EEM | Electronegativity Equalization Method |
| MINLP | Mixed-integer Nonlinear Programming |
| SCRIBE | Stratospheric Cryogenic Interferometer Balloon Experiment |
| IOMC | Inter-Organization Program For The Sound Management Of Chemicals |
| HACS | Hazard Assessment Computer System |
| EXAFS | Extended X-ray Absorption Fine Structure |
| CEQB | Collinear Exact Quantum (with Adiabatic) Bending (energy) (method For Reactive Scattering) |