| FI | fasciculus intrafascicularis; fever caused by infection; fibrinogen; fixed interval; flame ionization; follicular involution; food intolerance; forced inspiration; frontoiliac |
|---|---|
| FI, FII, | etc. factors I, II, etc. |
| FIA | fistula in ano; fluorescent immunoassay; focal immunoassay; Freund incomplete adjuvant |
| FIAC | 2'-fluoro-5-iodo-aracytosine |
| FIB | Fellow of the Institute of Biology; fibrin; fibrinogen; fibrositis; fibula |
| fib | fiber; fibrillation; fibrin; fibrinogen; fibula |
| FIC | Fogarty International Center; fractional inhibitory concentration |
| FICA | Federal Insurance Contributions Act |
| FICD | Fellow of the Institute of Canadian Dentists; Fellow of the International College of Dentists |
| FiCO2, | FICO2 fractional concentration of carbon dioxide in inspired gas |