| Acronym | Meaning |
| CHEMATA | Chem. Mechanism Adaptation To Tropospheric Applications |
| OTS | Office Of Toxic Substances (USEPA) |
| MC | Metal Carbide |
| MQDT | Multichannel Quantum Defect Theory |
| TROSY | Transverse Relaxation-optimized Spectroscopy |
| IU | International Unit |
| MEIS | Medium Energy Ion Scattering |
| ASFF | Aerated Stationary Or Submerged Fixed-film (wastewater Treatment) |
| BCF | Beneficiated Coal Fuel |
| EPBRE | External Pressure Balanced Ref. Electrode |