| Acronym | Definition |
|---|
| GEFS➣Generalized Epilepsy with Febrile Seizures |
| GEFS➣Global Ensemble Forecast System (US NOAA) |
| GEFS➣Global Electrophonic Fireball Survey (astronomy; University of Kentucky) |
| GEFS➣Genetic and Evolving Fuzzy Systems (International Conference) |