| Acronym | Meaning |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| GHCN | Global Historical Climatology Network |
| PDI | Point Dipole Interaction (model For Mol.-polarizability Calcns.) |
| BIXE | Bombardment-induced X-ray Emission |
| AGNES | Absence Of Gradients And Nernstian Equilibrium Stripping |
| SCG | Slow Crack Growth |
| OCE-DF | One-center Expansion Dirac-Fock |
| ACE | Acidity In Cloud Experiment |
| ODEX | Optical Dynamics Experiments |
| MP2(FU) | MP2(full) Inner-core Electrons Are Included In The Approxn. |