| F1, | F2 etc. first, second, etc., filial generation |
|---|---|
| FA | false aneurysm; Families Anonymous; Fanconi anemia; far advanced; fatty acid; febrile antigen; femor... |
| FAI | first aid instruction; free androgen index; functional aerobic impairment; functional assessment inv... |
| FDI | first dorsal interosseous [muscle]; International Dental Federation [Federation Dentaire Internation... |
| FDLMP | first day of last menstrual period |