| Acronym | Meaning |
| PNA | Polynuclear Aromatic Compound(s) |
| MRNA | Messenger Ribonucleic Acid |
| LCLO | Linear Combination Of Localized Orbitals |
| DCA | Dressed-cluster Approximation (in Band-structure Calcns.) |
| QLGM | Quantum Lattice Gas Model (in Helium Superfluid Transition Temperature In Zeolite Pores) |
| GOR | Gas/oil Ratio |
| RBA | Refined Born Approximation (for Atom-mol. Collisions) |
| CGE | Capillary Gel Electrophoresis |
| HMG-COA | 3-hydroxy-3-methylglutaryl Coenzyme A |
| SDSR-CI | Single And Double Excitations From Single Ref. State Function-CI Method |