| Acronym | Meaning |
| SS | Sewage Sludge |
| ISLSCP | International Satellite Land Surface Climatology Project |
| PADMR | Photoinduced Absorption Detected Magnetic Resonance |
| LMTD | Logarithmic Mean Temperature Difference |
| END | Electron Nuclear Dynamics (method In Atomic And Molecular Scattering Calcns.) |
| CASSS | California Separation Science Society |
| ASFF | Aerated Stationary Or Submerged Fixed-film (wastewater Treatment) |
| PRESS | Point Resolved Spectroscopy |
| LVBS | Linear Variational Basis Set (formalism In Calcns. On Scattering) |
| XSW | X-ray Standing Wave |