| Acronym | Meaning |
| MEG4 | Multiexponentially Generated 4 (wave Functions) |
| NIGA | Neutron Induced Gamma Activity |
| ISPM | In-situ Particle Monitor |
| PTGS | Picosecond Transient Grating Spectroscopy |
| IIA | Information Industry Association |
| UVPS | Ultraviolet Photoelectron Spectroscopy |
| PT2F | Second-order Perturbation Theory (with) Fock (matrix) |
| OECA | Office Of Enforcement And Compliance Assurance |
| PLUARG | Pollution From Land Use Activities Reference Group |
| MACS | Magnetic Cell Sorting System |