| Acronym | Meaning |
| PTC | Phase Transfer Catalysis |
| ANSR | Advanced Neutron Source Reactor |
| PEUF | Polyelectrolyte Enhanced Ultrafiltration |
| OLCAO | Orthogonalized Linear Combination Of Atomic Orbitals |
| ICCD | Intensified Charge-coupled Device |
| OMHCE | Organic Material Hydrocarbon Equivalent |
| RIA | Relative Ion Abundance |
| MF | Modifying Factor (in Oral RfD) |
| LILE | Large-ion Lithophile Element |
| AFLP | Amplified Fragment Length Polymorphism |