| FFT | fast Fourier transform; flicker fusion test or threshold |
|---|---|
| FHT | fast Hartley transform; fetal heart; fetal heart tone |
| FT | Fallot tetralogy; false transmitter; family therapy; fast twitch; fatigue trial; fibrous tissue; fin... |
| FTFT | fast time frequency transform |
| STFT | short-time Fourier transform |