Also called le⋅on⋅ti⋅a⋅sis os⋅se⋅a /ˈɒsiə/Show Spelled Pronunciation[os-ee-uh]Show IPA.an overgrowth of the cranial and facial bones resulting in a lionlike appearance.
Main Entry: le·on·ti·a·sis Pronunciation: "lE-&n-'tI-&-s&s Function: noun Inflected Form: pluralle·on·ti·a·ses/-"sEz/ : leprosy affecting the flesh of the face and giving it an appearance suggestive of a lion
leontiasis le·on·ti·a·sis (lē'ən-tī'ə-sĭs) n. The ridges and furrows on the forehead and cheeks of patients who have advanced lepromatous leprosy, giving a leonine appearance. Also called leonine facies.