| Acronym | Meaning |
| AEOS | Advanced Electro-Optical System |
| FEP | Free Energy Perturbation |
| CPC | Centrifugal Partition Chromatography |
| UCC | Unitary Coupled-cluster |
| HSRC | Hazardous Substance Research Center |
| HLBR | Required Hydrophilic-lipophilic Balance (of Surfactants In Emulsifiers) |
| ECP | Exchange Core Polarization |
| SCPI | Standard Commands For Programmable Instruments |
| ARIC | Acid Rain Information Clearinghouse |
| LEES | Local Excess-electron State (a Mol.-crystal Wave Function) |