adj.
Pronunciation: p ə - ' r ī - ə -t ə l
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