| Acronym | Meaning |
| SCN | Suprachiasmatic Nucleus |
| EVLSM | Evanescent Wave Light-scattering Microscopy |
| ECP | Electrochemical Potential |
| SOP | Second-order Potential (method For Positron-atom Scattering) |
| ECD | Electron Capture Detector (gas Chromatography) |
| CSIR | Chemistry Software And Information Resources |
| NPAR | Nonbinding Preliminary Allocation Of Responsibility |
| EPRI | Electric Power Research Institute |
| NSTL | Near Surface Transition Layer |
| BTB | Bromothymol Blue |