| Acronym | Meaning |
| HTL | Hole Transport Layer |
| NETAC | National Environmental Technol. Applications Corporation |
| IBIL | Ion Beam Induced Luminescence |
| BEIS | Biogenic Emissions Inventory System (US EPA) |
| DIDMOAD | Diabetes Insipidus |
| BOC | Bond-order Conservation (model In Calcns. On Reactions) |
| EGSB | Expanded Granular Sludge Bed |
| WAXS | Wide-angle X-ray Scattering |
| MRCEPA | Multireference Coupled-electron-pair Approxn. |
| SALI | Secondary Atom Laser Ionization |