| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
|---|---|
| IM nail | Intra-Medullary nail |
| K nail | Kuntscher nail |
| FC | fasciculus cuneatus; fast component [of a neuron]; febrile convulsions; feline conjunctivitis; ferri... |
| FTF | finger to finger |