| Acronym | Meaning |
| SAB | Science Advisory Board (USEPA) |
| ROD | Record Of Decision |
| MPE | Multiphoton Excitation |
| EMT | Effective Mass Theory (in Electronic Wave Functions Calcn.) |
| PT | Perturbation Theory |
| PACVD | Plasma-assisted Chemical Vapor Deposition |
| EAL-MCDF | Extended Average Level-(relativistic) Multiconfiguration Dirac-Fock |
| IAHR | International Association For Hydraulic Research |
| OLS | Online Library System |
| LAWG | Laboratory Accreditation Working Group |