| Acronym | Meaning |
| AHP | Average Hole-potential (method For Electronic-structure Calcns. On Mols.) |
| CLC | Cholesteric Liquid Crystal |
| DCP | Direct Current Plasma |
| ASHES | Axial Seamount Hydrothermal Emissions Study |
| UTP | Unitary Transformation (based) Perturbation (theory) |
| THGF | Trigonometric Hermite Gaussian Function |
| NERC | North American Electric Reliability Council |
| ESQUIRE | External Source QUIstor With Resonance Ejection |
| GSA | General Services Administration |
| IAGC | International Association Of Geochemistry And Cosmochemistry |