| Acronym | Meaning |
| SRCCSDT | Single-reference Coupled-cluster (with) Single (and) Double (and) Triple (excitations) |
| OFW | Organic Free Water |
| CIH | Certified Industrial Hygienist |
| GDA | Glow Discharge Atomization (for Atomic Absorption Spectrometry) |
| 2DEG | Two-dimensional Electron Gas |
| ELPAT | Environmental Lead Proficiency Analytical Testing |
| IAEG | International Association Of Engineering Geology |
| PVD | Physical Vapor Deposition |
| WSM | Watershed Model |
| REELM | Reflected Electron Energy Loss Microscopy |