Main Entry: fib·u·la

Pronunciation: \ˈfi-byə-lə\

Function: noun

Inflected Form(s): plural fib·u·lae \-lē, -lī\ or fib·u·las

Etymology: Latin, pin, clasp; akin to Latin figere to fasten

Date: 1578

1 : the outer and usually smaller of the two bones between the knee and ankle in the hind or lower limbs of vertebrates
2 : a clasp resembling a safety pin used especially by the ancient Greeks and Romans

— fib·u·lar \-lər\ adjective

[fibula illustration]