| fem | female; femur, femoral |
|---|---|
| FFU | femur-fibula-ulna [syndrome]; focal forming unit |
| FL | fatty liver; feline leukemia; femur length; fibers of Luschka; fibroblast-like; filtration leukapher... |
| UPF | universal proximal femur [prosthesis] |
| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |