| Acronym | Meaning |
| LNAPL | Light Nonaqueous Phase Liquid |
| SSRS | Subtracted Shifted Raman Spectroscopy |
| CDM | Cold Dark Matter |
| FRS | Forward Recoil Spectrometry |
| PSCA | Periodic Small-cluster Approach (a Many-body Technique In Electronic-structure Calcns.) |
| EF | Emission Factor |
| NMFS | National Marine Fisheries Service (of NOAA) |
| JIS | Japan Industrial Standard |
| PTEF | Photochem. Thermodynamic Efficiency Factor |
| HPC | Heterotrophic Plate Count |