| Acronym | Meaning |
| PISCES | Passive In-Situ Concn. Extn. Sampler |
| SAMO | Simulated Ab Initio Molecular Orbital |
| SSC | Superconducting Super Collider |
| NACCHO | National Association Of County And City Health Officials |
| EEM | Episodic Event Model (of Acidification) |
| LCCSD | Linearized Coupled-cluster (theory With) Single (and) Double (excitations) (in Mol. Potential Calcns.) |
| SDME | Single-drop Microextraction |
| GSA | Generator-state Approach (in Many-body Quantum Theory) |
| SEM | Strategic Environmental Management |
| LADH | Liver Alcohol Dehydrogenase |