Main Entry: le·sion

Pronunciation: \ˈlē-zhən\

Function: noun

Etymology: Middle English, from Anglo-French, from Latin laesion-, laesio, from laedere to injure

Date: 15th century

1 : injury, harm
2 : an abnormal change in structure of an organ or part due to injury or disease; especially : one that is circumscribed and well defined

— le·sioned \-zhənd\ adjective