| Acronym | Meaning |
| AIJ | Activities Implemented Jointly [related To Greenhouse Gas Control] |
| FDPM | Frequency-domain Photon Migration |
| NLTE | Non-local Thermodynamic Equilibrium |
| SESF | Superlattice Extrinsic Stacking Fault |
| PTA | Packed Tower Aeration |
| FCSA | Frequency-corrected Sudden Approxn. (in Mol. Collision Calcns.) |
| SEPA | State Environmental Policy Act |
| HTSC | High Temperature Superconductor |
| SMOC | Standard Mean Ocean Chloride |
| GLERL | Great Lakes Environmental Research Laboratory |