| Acronym | Meaning |
| OSW | Office Of Solid Waste (US EPA) |
| IPPP | Inner Projections (of The) Polarization Propagator (in Calcns. On Nuclear Spin Coupling) |
| DQO | Data Quality Objectives |
| CFBR | Conventional Fluidized Bed Reactor |
| GEASIC | Gradient-expansion Approxn. Self-interaction Correction (functional |
| ABMA | American Boiler Manufacturers Association |
| WCRP | World Climate Research Programme |
| ACID | Acidification Chemistry Information Database |
| CNDO/SWW | Complete Neglect Of Differential Overlap/ Sichel-Whitehead-Wratten Parametrization |
| NELC | Non-exclusion Liquid Chromatography |