| Acronym | Meaning |
| IESWTR | Interim Enhanced Surface Water Treatment Rule |
| PO-DVR-REV | Potential Optimized-discrete Variable Representation-ray Eigenvector |
| NPC | Nonparenchymal Cell |
| HFO | Hartree-Fock Orbital |
| CICAD | Concise International Chemical Assessment Documents |
| GLO | Gaussian Lobe Orbital |
| FASTER | FAst Spinning Gives Transfer Enhancement At Rotary Resonance |
| CAMM | Cumulative Atomic Multipole Moment (for Mol. Charge Distributions) |
| INDO/2-AHP | INDO/2-average Hole Potential |
| IPS | Inverse Photoemission Spectroscopy |