| Acronym | Meaning |
| PZC | Polyzirconium Compound (isopropyl Alc.-zirconium Chloride Copolymer) |
| DCTL | Direct Coupled Transistor Logic |
| PESTANV4.0 | Pesticide Analytical Model Version 4.0 |
| VCCPB | Variable-charge Coulomb-projected Born (approxn. For Electron-atom Scattering) |
| CRLAS | Cavity Ringdown Laser Absorption Spectroscopy |
| WSDA | Weighted Spin-density Approxn. |
| EDA | Electron Donor-acceptor |
| STEP | Science And Technology For Environmental Protection |
| NEAR | Near Earth Asteroid Rendezvous |
| FSMRCCSD | Fock Space Multireference Coupled Cluster (with) Single (and) Double Excitations |