| Acronym | Meaning |
| WEEE | Waste Electrical And Electronic Equipment |
| EMMA | Energy-dispersive Miniprobe Multielement Analyzer |
| NPA | Natural Population Analysis (for Electron Configuration Of Mols.) |
| APS | Active Pixel Sensor |
| NPTN | National Pesticide Telecommunications Network |
| EICP | Enclosed Inductively Coupled Plasma |
| SCN | Suprachiasmatic Nucleus |
| LPL | Lipoprotein Lipase |
| TPO | Thermoplastic Polyolefin |
| MAOI | Monoamine Oxidase Inhibitor |