| Acronym | Meaning |
| CNDO/2-U | Universal CNDO/2 (extended To Full Periodic Table) |
| CPA | Coupled-pair Approximation |
| ITO | Indium Tin Oxide (gas Sensor |
| CBA | Cost-Benefit Analysis |
| GRVB | Generalized Resonating Valence Bond |
| SBMF | Slave-boson Mean Field (in Electronic-structure Calcns.) |
| FBBR | Fluidized Bed Biofilm Reactor |
| IPMS | Infinite Periodic Minimum Surfaces |
| BTDC | Bulk Thermal Desorption Chamber |
| FPLV | Feline Panleukopenia Virus |