1 Anat. of the wall of the body or any of its cavities.
2 Bot. of the wall of a hollow structure etc.
3 US relating to residence within a college.
Phrases and idioms:
parietal bone either of a pair of bones forming the central part of the sides and top of the skull.
Etymology: F parieacutetal or LL parietalis f. L paries -etis wall
Useful english dictionary. 2012.