extramalleolus

lat·er·al mal·le·o·lus

[TA] the process at the lateral side of the lower end of the fibula, forming the projection of the lateral part of the ankle; the lateral malleolus extends farther inferiorly than the medial malleolus. Synonym(s): malleolus lateralis [TA], external malleolus, extramalleolus, outer malleolus

extramalleolus

(ĕks″tră-măl-lē′ō-lŭs) [″ + malleolus, little hammer] The external or lateral malleolus of the ankle.