| ETF | electron-transferring flavoprotein; eustachian tube function |
|---|---|
| exp | expansion; expectorant; experiment, experimental; expiration, expired; exponential function; exposur... |
| FFI | family function index; free from infection; fundamental frequency indicator |
| fn | function |
| FS | factor of safety; Fanconi syndrome; Felty syndrome; fibromyalgia syndrome; field stimulation; Fisher... |