| Acronym | Meaning |
| EAA | Environmental Assessment Association |
| RODTOX | Rapid Oxygen Demand And Toxicity Tester |
| ESEEM | Electron Spin Echo Envelope Modulation |
| REM | Rapid Eye Movement |
| RECP | Relativistic Effective-core Potential |
| ORV | Optical Retardation Velocity |
| ACSV | Adsorptive Cathodic Stripping Voltammetry |
| SCIT | Standing Committee On Information Technologies |
| HHMI | Howard Hughes Medical Institute |
| CIP | Configuration Interaction With Partner Orbitals |