| Acronym | Meaning |
| BSO | Bismuth Silicon Oxide |
| CBLM | Cluster-bethe-lattice Method (for Electronic-structure Calcns. On Crystals) |
| FLASH | Fluorescent Airborne Stratospheric Hygrometer |
| ERK | Extracellular Signal-regulated Kinase |
| HAOM | Hybrid Atomic Orbital Model |
| LASCS | Light-activated Silicon Controlled Switch |
| PFPB | Point-feed Prebaked [in Al Refining] |
| MLCT | Metal-to-ligand Charge-transfer |
| DMBE | Double Many-body Expansion (in Potential Energy Surface Calcn.) |
| CBNM | Central Bureau For Nuclear Measurements |