| DAF | decay-accelerating factor; delayed auditory feedback; drug-adulterated food |
|---|---|
| FB | fasting blood [sugar]; feedback; fiberoptic bronchoscopy; fingerbreadth; foreign body; Fusobacterium... |
| FBS | fasting blood sugar; feedback system; fetal bovine serum |
| FCS | faciocutaneoskeletal syndrome; fecal containment system; feedback control system; fetal calf serum; ... |
| FIF | feedback inhibition factor; fibroblast interferon; forced inspiratory flow; formaldehyde-induced flu... |