FEX
| Acronym | Definition |
|---|---|
| FEX | Fexofenadine |
| FEX | Floating Point Enabled Exception |
| FEX | Fault Exception |
| FEX | Funding Exchange |
| FEX | File Extension |
| FEX | Field Exercise |
| FEX | Flight Engineer |
| FEX | Fabric Extender (Cisco Systems, Inc.) |
| FEX | Feature Extraction |
| FEX | Fluorescence Excitation |
| FEX | Fleet Exercise |
| FEX | Frequency Extender |
| FEX | Freshmen Externships |