| Acronym | Meaning |
| STD | Safely Tolerated Dose |
| SPHINCS | Sequential PHoton Interrogation And Neutron Counting Signatures |
| CPD | Contact Potential Difference |
| IFPC | Integrated Flight And Propulsion Control |
| DMPP | 1,1-dimethyl-4-phenylpiperazinium Iodide |
| AFBC | Atmospheric Fluidized Bed Combustion |
| MPI | Mass Psychogenic Illness (in Indoor Air Pollution) |
| EDCF | Endothelium-derived Contracting Factor |
| TEAM | Testing Electromagnetic Analysis Methods |
| EFH | Extended Fenske-Hall (LCAO MO Method) |