Definition of parietal

• a. - Of or pertaining to a wall; hence, pertaining to buildings or the care of them.
• a. - Resident within the walls or buildings of a college.
• a. - Of pertaining to the parietes.
• a. - Of, pertaining to, or in the region of, the parietal bones, which form the upper and middle part of the cranium, between the frontals and occipitals.
• a. - Attached to the main wall of the ovary, and not to the axis; -- said of a placenta.
• n. - One of the parietal bones.
• n. - One of the special scales, or plates, covering the back of the head in certain reptiles and fishes.