| Acronym | Meaning |
| RCNDO | Rydberg CNDO |
| DQMC | Diffusion Quantum Monte Carlo (method In Atom And Mol. Calcns.) |
| UHF | Unrestricted Hartree-Fock |
| ALAP | As Low As Practical |
| BVD | Bovine Viral Diarrhea |
| CGTO | Cartesian Gaussian-type Orbital |
| MIES | Maximum Ionicity Excited State (model In Energy Calcn. Of Mols.) |
| OES | Occupational Exposure Standard |
| HIM | Hydroxy Interlayered Minerals (clay Minerals) |
| ADT | Air Dry Ton [of Cellulose Pulp] |