| FACS | Fellow of the American College of Surgeons; fluorescence-activated cell sorter |
|---|---|
| FFC | fixed flexion contracture; fluorescence flow cytometry; free from chlorine |
| FIF | feedback inhibition factor; fibroblast interferon; forced inspiratory flow; formaldehyde-induced flu... |
| FISH | fluorescence in situ hybridization |
| Fl | fluid; fluorescence |