| SFD | silo filler's disease; skin-film distance; small for dates; spectral frequency distribution |
|---|---|
| TFT | thin-film transistor; thrombus formation time; thyroid function test; tight filum terminale; trifluo... |
| UF | film unsharpness; ultrafiltrate; ultrafiltration; ultrafine; ultrasonic frequency; universal feeder;... |