| Acronym | Meaning |
| CLS | Core Level Spectroscopy |
| ERDA | US Energy Research And Development Administration |
| HSLA | High-strength Low-alloy (steel) |
| NDDO | Neglect Of Diatomic Differential Overlap |
| ACEL | A.c. Electroluminescent |
| MPA | Multipurpose Additive |
| DV-X(ALPHA) | Discrete Variational-x(alpha) (statistical Exchange Correlation) |
| HOFF | Hybrid Orbital Force Field |
| IFM | Interfacial Force Microscopy |
| RSK | Ribosomal S6 Kinase |