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[puh-rahy-i-tl] /pəˈraɪ ɪ tl/
Anatomy. of, relating to, or situated near the side and top of the skull or the parietal bone.
Biology. of or relating to parietes or structural walls.
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.
pertaining to or having authority over residence, and especially 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.
Anatomy. any of several parts in the parietal region of the skull, especially the parietal bone.
parietals, Also called parietal rules. campus regulations governing visits between members of opposite sexes to each other's dormitories or rooms.
Origin of parietal
1590-1600; < Late Latin parietālis of, belonging to walls, equivalent to Latin pariet- (stem of pariēs) wall + -ālis -al1
Related forms
interparietal, adjective
subparietal, adjective
transparietal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for parietal
  • Next came regions governing spatial orientation and language in the parietal lobes on the sides of the brain.
  • Other useful signals came from the inferior parietal lobule, an area of the brain known to help guide the movement of limbs.
  • Then he pointed to the parietal cortex and the temporal lobes, regions that are also involved in deliberative decision-making.
  • Their results suggest that the frontal cortex is responsible for willful attention and the parietal cortex for automatic.
  • But the parietal lobe is a huge chunk of neural real estate.
  • Scientists already knew that the t he frontal and parietal lobes of the brain are involved in number processing.
  • And they all have decreased activity in the right parietal lobe of the brain.
  • The parietal cortex covers the parietal lobe, a large section of the brain.
  • Still, it is unknown whether the parietal cortex-specifically its left hemisphere-processes numeric value independent of notation.
  • Activity was also decreased in parts of the parietal and prefrontal regions involved in consciousness and awareness of change.
British Dictionary definitions for parietal


(anatomy, biology) of, relating to, or forming the walls or part of the walls of a bodily cavity or similar structure: the parietal bones of the skull
of or relating to the side of the skull
(of plant ovaries) having ovules attached to the walls
(US) living or having authority within a college
a parietal bone
Word Origin
C16: from Late Latin parietālis, from Latin pariēs wall
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for parietal

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), of unknown origin. In U.S. also "pertaining to the residents and rules of a college or university" (1837).

Online Etymology Dictionary, © 2010 Douglas Harper
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parietal in Medicine

parietal pa·ri·e·tal (pə-rī'ĭ-tl)

  1. Relating to or forming the wall of any cavity.

  2. Of or relating to either of the parietal bones.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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