| FDDI | film distribution data interface |
|---|---|
| FFD | Fellow in the Faculty of Dentistry; focus-film distance |
| FR | failure rate; film-screen radiograph; fasciculus retroflexus; febrile reaction; feedback regulation;... |
| FSR | Fellow of the Society of Radiographers; film screen radiography; force sensing resistor; fragmented ... |
| HFDA | high film density area |