| FCI | fixed-cell immunofluorescence; food chemical intolerance |
|---|---|
| FI | fasciculus intrafascicularis; fever caused by infection; fibrinogen; fixed interval; flame ionizatio... |
| FRCD | Fellow of the Royal College of Dentists; fixed ratio combination drug |
| VOO | ventricular asynchronous (competitive, fixed-rate) [pacemaker] |
| DEFT | direct epifluorescent filter technique |