| Acronym | Meaning |
| EH | Extended Hueckel |
| LCPH | Localized Chemical Pseudopotential Hamiltonian |
| RCA | Rolling-circle Amplification |
| QTOF | Quadrupole Time-of-flight |
| CHEM | Chemical Collection Database (accessible Through OLS) |
| SC-HL | Self-consistent Heitler-London |
| CNPPA | Commission On National Parks And Protected Areas |
| PLUARG | Pollution From Land Use Activities Reference Group |
| EMG | Exponentially Modified Gaussian |
| E-CATS | Electronic Catalog System |