| Acronym | Meaning |
| RCO | Regenerative Catalytic Oxidizer |
| LSASV | Linear Sweep Anodic Stripping Voltammetry |
| BO | Biorthonormal (wave Function) |
| NWC | National Water Council (UK) |
| HTU | Height Of Transfer Unit (in Packed Tower Aeration System) |
| ARROW | Anti-resonant Reflecting Optical Waveguide |
| UMP | Unrestricted Moeller-Plesset |
| APCS | Argonne Premium Coal Sample |
| MFRC | Membrane Flux Retention Coefficient |
| BASHD | Band Selective Homonuclear Decoupling |