| Acronym | Meaning |
| BPFT | Bohm-Pines-Fock-Tani (Hamiltonian In Calcns. On Plasmons) |
| HOC | Halogenated Organic Carbons |
| GMDH | Group Method Of Data Handling |
| CSACM | Canonical Statistical Adiabatic Channel Model (in Reactions) |
| PDFT | Perturbation Density-functional Theory |
| ACSL | Advanced Continuous Simulation Language |
| CICAD | Concise International Chemical Assessment Documents |
| ELMO | Energy-localized Molecular Orbital |
| UCCD | (spin) Unrestricted Coupled Cluster (with) Double (excitations) |
| ORD BBS | ORD Electronic Bulletin Board System |