Main Entry: ¹pa·ri·e·tal

Pronunciation: \pə-ˈrī-ə-t^əl\

Function: adjective

Etymology: Middle English, from Medieval Latin parietalis, from pariet-, paries wall of a cavity or hollow organ, from Latin, wall

Date: 15th century

1 a : of or relating to the walls of a part or cavity b : of, relating to, or forming the upper posterior wall of the head
2 : attached to the main wall rather than the axis or a cross wall of a plant ovary —used of an ovule or a placenta
3 : of or relating to college living or its regulation; especially : of or relating to parietals