| Acronym | Meaning |
| XCC | Expectation-value Coupled-cluster (in Correlation Energies And Electronic Properties Of Many-electron Systems Calcns.) |
| GREAT-ER | Geog.-referenced Regional Exposure Assessment Tools For European Rivers |
| NRIOSA | Nonreactive Infinite-order Sudden Approxn. |
| IVO | Improved Virtual Orbital |
| AHW | Atomic Hydrogen Welding |
| QPEN | Quantum-mech. Potential (based On Interactios Of) Electrons (and) Nuclei |
| AEP | Auditory Evoked Potential |
| RPJ | Radio-frequency Plasma Jet |
| CIAC | Centro De Informacion Ambiental Del Caribe |
| COD | Crack Opening Displacement |