| Acronym | Meaning |
| CAS | Chemical Abstracts Service |
| LSI | Large-scale Integration |
| APEO | Alkylphenol Ethoxylates |
| OAO | Orthogonalized Atomic Orbital |
| HTSS | Hierarchical Tree Substructure Search |
| STERAO | Stratosphere-Troposphere Experiments: Radiation |
| SMIDG | Submicro Inverse-detection Gradient |
| SBMF | Slave-boson Mean Field (in Electronic-structure Calcns.) |
| EBM | Electron Beam Melting |
| XAES | X-ray Excited Auger Electron Spectroscopy |