| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
|---|---|
| FP | false positive; family physician; family planning; family practice; family practitioner; Fanconi pan... |
| fp | flexor pollicis; foot-pound; forearm pronated; freezing point |
| FVR | feline viral rhinotracheitis; forearm vascular resistance |
| LF | labile factor; lactoferrin; laryngofissure; Lassa fever; latex fixation; left foot; left forearm; le... |