| Acronym | Meaning |
| CCA | Coupled-cluster Approach |
| SMM | Spin Matrix Mapping |
| FBR | Finite Basis Representation (in Wave Fct. Calcn. For Nuclear Motion On Potential Energy Surface) |
| NPSO | Nonpaired Spatial Orbital |
| MVP | Mitral Valve Prolapse |
| CLP | Contract Laboratory Protocols (EPA) |
| LIGO | Laser-interferometer Gravitational-wave Observatory |
| LCMTO | Linear Combination Of Muffin-tin Orbitals |
| LAAM | Levo-alpha Acetyl Methadol |
| AFIS | Advanced Fiber Information System |