peroneal,a.Anat.|pɛrəʊˈniːəl| [f.mod.L. peronæ-us (f.peronē: see prec.) + -al1.] Pertaining to or connected with the perone or fibula. 1831R. Knox Cloquet's Anat. 223 A branch of the peroneal artery.1872Mivart Elem.Anat. 177 Called the fibula, or peroneal bone of the leg.