| Acronym | Meaning |
| ARNT | Aryl Hydrocarbon Receptor Nuclear Translocator |
| SRCI | Single-reference Configuration Interaction |
| LHSF | Local Hyperspherical Surface Functions (in Quantum Calcns. On Reactive Scattering) |
| CIDR | Controlled-internal Drug Release |
| OMCVD | Organometallic Chemical Vapor Deposition |
| LAEC | Lowest Achievable Emission Rate |
| LRAT | Long-range Atmospheric Transport |
| BBN | Big Bang Nucleosynthesis |
| LRO | Long Range Order |
| NIST | National Institute Of Standards And Technology (formerly NBS) |