early 15c., "pertaining to the walls of a cavity in the body," from Late Latin parietalis "of walls," from Latin paries (genitive parietis) "wall" (of a building), a word of unknown origin. In U.S. also "pertaining to the residents and rules of a college or university" (1837; compare intramural). Combining form is parieto-.
updated on January 19, 2020
Dictionary entries near parietal