/pəˈrʌɪɪt(ə)l/
Noun
1. A parietal structure. (Google Dictionary)
2. (Anatomy) Either of the two parietal bones, on the top and side of the skull. (wiktionary.org)
Adjective
1. Relating to or denoting the wall of the body or of a body cavity or hollow structure. (Google Dictionary)
2. Of or relating to the parietal bones. (wiktionary.org)
3. (Botany) Borne on the inside of the ovary wall. Used of the ovules or placentas in flowering plants. (thefreedictionary.com)
Word origin: From Late Latin parietalis “of walls,” from Latin paries (genitive parietis) “wall” (of a building), of unknown origin. In U.S. also “pertaining to the residents and rules of a college or university.”