| Acronym | Meaning |
| AFBBR | Anaerobic Fluidized Bed Biofilm Reactor |
| CCRM | Coupled-channel Reactance Matrix (in Atom Surface Scattering) |
| ECSPM | Electrochemical Scanning Probe Microscopy |
| ENA | Energetic Neutral Atoms (astronomical Plasmas) |
| IRS | Infrared Soldering |
| AMN | Alkali Metal Nitrite(s) |
| APNEA | Active Passive Neutron Examination And Assay |
| C.I. | Color Index |
| BIA | Bioelectric Impedance Analysis |
| QED | Quantum Electrodynamics |