noun
fibula
FIB-yuh-luh/ˈfɪbjələ/
The smaller outer bone of the lower leg.
The fibula runs along the outer side of the lower leg.

Etymology
Latin fibula meant a clasp or brooch. The smaller lower-leg bone received this name because it resembles a clasp like that of a modern safety pin.
In context
scp-5798 snaps the tibia and fibula of researcher hatto's lower legs
More examples
- She fractures her fibula during a soccer game.
- The lower end of the fibula forms the outer ankle.
- The diagram shows the fibula beside the larger tibia.
Forms
fibula · fibulas · fibulae
fibular adjective — Relating to the smaller lower-leg bone.