| Acronym | Meaning |
| AHP | Average Hole-potential (method For Electronic-structure Calcns. On Mols.) |
| BASHD | Band Selective Homonuclear Decoupling |
| UJT | Unijunction Transistor |
| ATRA | All-trans-retinoic Acid |
| PGDN | Propylene Glycol Dinitrate |
| ETBM | Empirical Tight-binding Method (in Electronic Structure Calcn.) |
| ECS | Electroconvulsive Shock |
| CFSTI | Clearinghouse For Federal Scientific And Technical Information |
| XCC | Expectation-value Coupled-cluster (in Correlation Energies And Electronic Properties Of Many-electron Systems Calcns.) |
| RLT | Riemann-Liouville Transform |