| Acronym | Meaning |
| OPG | Optical Parametric Generator |
| HEMPAS | Hereditary Erythroblastic Multinuclearity With Positive Acidified Serum Lysis Test |
| CTMP | Chemico-thermomechanical Pulping |
| HHH | Henon-Heiles Hamiltonian |
| BRET | Breeder Reprocessing Engineering Test |
| ISP | In-line Strip Production |
| GFAA | Graphite Furnace Atomic Absorption |
| RD/RA | Remedial Design/Remedial Action |
| CRTA | Controlled Rate Thermal Analysis |
| APEX | Active Plasma Experiment Satellite |