| Acronym | Meaning |
| CAS-SCF | Complete Active Space SCF (a CI-type Method) |
| ACGIH | American Conference Of Governmental Industrial Hygienists |
| AMMRC | Army Materials And Mechanics Research Center |
| SDECI | Singly And Doubly Excited Configuration Interaction |
| NASQUAN | National Stream Water Quality Accounting Network |
| NICA | Nonideal Competitive Adsorption |
| ERAQS | Eastern Regional Air Quality Study |
| TFT | Thin Film Transistor |
| EQCIS | Electrochemical Quartz Crystal Impedance System |
| AFBBR | Anaerobic Fluidized Bed Biofilm Reactor |