Pa-rī'e-tal, a.

a. [Lat. parietalis, from paries, parietis, a wall; Fr. pariétal, Sp. parietal, It. parietale.]

1. Pertaining to a wall.
2. Pertaining to buildings or the care of them; resident within the walls or buildings of a university, or the like. [Rare.]

At Harvard College, the officers resident within the college walls constitute a permanent standing committee, called the Parietal Committee. College Words and Customs.

3. (Anat.) Pertaining to the bones which form the sides and upper part of the skull, and are so called because they defend the brain like walls. Parr.
4. (Bot.) Pertaining to, or growing from, the inner lining or wall of another; — said of any organ.