| FFA | Fellow of the Faculty of Anaesthetists; free fatty acid |
|---|---|
| FFARCS | Fellow of the Faculty of Anaesthetists of the Royal College of Surgeons |
| FFCM | Fellow of the Faculty of Community Medicine |
| FFD | Fellow in the Faculty of Dentistry; focus-film distance |
| FFDSRCS | Fellow of the Faculty of Dental Surgery of the Royal College of Surgeons |