| Acronym | Meaning |
| DWBA3(3DWBA) | Three-body Distorted-wave Born Approximation |
| A/PI | Ab Initio Perturbed Ion (quantum Clacn. Method) |
| EMCI | Envirofacts Master Chemical Integrator |
| HASL | Hot Air Solder Leveling [electronics] |
| XES | X-ray Emission Spectroscopy |
| IAS | In-situ Air Sparging |
| CPST | Classical Perturbation Scattering Theory |
| MQW | Multiple Quantum Well |
| UNIRAM | Software For Reliability |
| IAH | International Association Hydrogeologists |