| FEFV | forced expiratory flow volume |
|---|---|
| FES | family environment scale; fat embolism syndrome; flame emission spectroscopy; forced expiratory spir... |
| FET | field-effect transistor; forced expiratory time |
| FETs | forced expiratory time in seconds |
| FEV | familial exudative vitreoretinopathy; forced expiratory volume |