| Acronym | Meaning |
| EBT | Electron Beam Tomography |
| MTBE | Methyl Tert Butyl Ether (gasoline Additive) |
| ALS | Advanced Light Source |
| PED | Potential Energy Distribution |
| RLS | Resonance Light Scattering |
| SPARC | Stratospheric Processes And Their Role In Climate |
| EIP | Eigenvalue-independent Partitioning (in Coupled-cluster Calcns.) |
| PE | Population Equivalent (in Wastewater Treatment) |
| PESC | Passivated Emitter Silicon Solar Cell |
| CHELP | CHarges From ELectrostatic Potential |