| 1. | Anatomy. of, pertaining to, or situated near the side and top of the skull or the parietal bone. |
| 2. | Biology. of or pertaining to parietes or structural walls. |
| 3. | Botany. pertaining to or arising from a wall: usually applied to ovules when they proceed from or are borne on the walls or sides of the ovary. |
| 4. | pertaining to or having authority over residence, and esp. visitation regulations between the sexes, within the walls or buildings of a college or university: a listing of the parietal regulations for the law students' dormitory. |
| 5. | Anatomy. any of several parts in the parietal region of the skull, esp. the parietal bone. |
| 6. | parietals. Also called parietal rules. campus regulations governing visits between members of opposite sexes to each other's dormitories or rooms. |

parietal pa·ri·e·tal (pə-rī'ĭ-tl)
adj.
Relating to or forming the wall of any cavity.
Of or relating to either of the parietal bones.