| Acronym | Meaning |
 | HMTC | Hazardous Materials Technical Center |
 | AFM | Abrasive Flow Machining |
 | GLF | Gaussian Lobe Function |
 | MRINDO/S | Modified Rydberg Intermediate Neglect Of Differential Overlap/spectral (or Screening) |
 | RDGTO | (back-)rotated Distributed Gaussian-type Orbital |
 | OVB | Orthogonalized Valence Bond Method |
 | ZID | Zone Of Initial Dilution |
 | CPDWB | Coulomb-projected Distorted-wave Born |
 | HOCO | Highest Occupied Crystal Orbital |
 | QEEC | Quasimol. Extended Elementary Cell (for Electronic Structure Calcns. Of Crystals) |