| Acronym | Meaning |
| AASHO | American Association Of State Highway Officials |
| RUS | Resonant Ultrasound Spectroscopy |
| ODP | Ocean Drilling Program |
| PO-MO | Pars Orbital-MO |
| WLE | Wigner-Liouville Equation (in Study Of Quantum Dynamics) |
| RNAP | RNA Polymerase |
| MIDDAS | Microdiameter Depth Adsorption Systems |
| ACP | Air Carcinogen Policy |
| KKRZ | Korringa-Kohn-Rostoker-Ziman (in Energy-band Calcns.) |
| DGD | Decision Guidance Documents |