| Acronym | Meaning |
| WTIE | Wastewater Treatment And Information Exchange |
| ANMO | Average-natural Molecular Orbital |
| ART | Atom Relay Transistor |
| IODS | Identical Orbitals For Different Spins |
| STEL | Short Term Exposure Limit |
| UMTRCA | Uranium Mill Tailings Radiation Control Act |
| LKKR | Layer Korringa-Kohn-Rostoker (in Interface Electronic Structures) |
| JULIC | Juelich Isochronous Cyclotron |
| TRIPS | Trade-Related Aspects Of Intellectual Property Rights |
| FEV1 | Forced Expiratory Volume In The First Second (lung Function) |