| Acronym | Meaning |
| IEH | Intermediate Effective Hamiltonian |
| EFA | Evolving Factor Analysis |
| SPASE | South Pole Air Shower Expt. |
| EEDF | Electron Energy Distribution Function |
| ADU | Analog-to-digital Unit |
| NAI | Neutral Atom Imaging (astronomical Plasmas) |
| MIMAS | MIcronization And MASter Blend |
| MIP | Major Intrinsic Protein |
| IETS | Inelastic Electron Tunneling Spectroscopy |
| SCALPEL | Scattering With Angular Limitation Projection Electron Lithography |