| Acronym | Definition |
|---|
| ALEX➣Alexandria, VA |
| ALEX➣Allgäu-Express (German railway) |
| ALEX➣Alert Exercise |
| ALEX➣Alternative gene product Encoded by the XL-exon |
| ALEX➣Avian Learning Experiment (African Grey parrot owned by Irene Pepperberg at the University of Arizona) |
| ALEX➣Aerosol LIDAR Experiment |
| ALEX➣Automatic Launch of Expendables |