Main Entry: amen·tia

Pronunciation: \(ˌ)ā-ˈmen(t)-sh(ē-)ə, (ˌ)ä-\

Function: noun

Etymology: New Latin, from Latin, madness, from ament-, amens mad, from a- (from ab-) + ment-, mens mind — more at mind

Date: 14th century

: mental retardation; specifically : a condition of lack of development of intellectual capacity