| Acronym | Meaning |
| QLCPMET | Quasilinearized Coupled-pair-many-electron Theory |
| PESTM | Photon Emission Scanning Tunnel Microscopy |
| ECCF | Equilibrium Charge-charge Flux (model In Ir Spectra Calcns.) |
| EEF GTO | Electric Field Gradient Gaussian-type Orbital |
| TDSHF | Time-dependent Screened Hartree-Fock |
| RQCAR | Reportable Quantities For Carcinogens In Hazardous Waste |
| ZCCSD | Z-vector Coupled Cluster (with) Single (and) Double Excitation |
| ESCPM | Electrochemical Scanning Probe Microscopy |
| MRD-CI | Multireference Double-excitation Configuration Interaction |
| PWBA-R | Plane-wave Born Approxn. With Relativistic Effects |