| 释义 | pa·ri·e·tal I. \pəˈrīəd.əl\ adjective
 Etymology: Middle French, from New Latin pariet-, paries + Middle French -al
 1.
 a.  : of or relating to the walls of a part or cavity
 < parietal peritoneum >
 — compare visceral
 b.  : of, relating to, or located in the upper posterior part of the head; specifically  : relating to either of the pair of bones that form the cranial roof of this part of the skull
 2. of a plant part  : peripheral in location or orientation; especially  : attached to the main wall rather than the axis or a cross wall of an ovary — used of an ovule or a placenta
 3.  : of or relating to life within college walls or its order and regulation; especially  : of or relating to the visitation regulations for members of the opposite sex in dormitories
 4.  : of, relating to, or appearing on a wall
 < upon the wall … some work of parietal art — G.B.Brown >
 II. noun
 (-s)
 : a parietal part (as a bone, scale, or plate)
 III. noun
 parietals  plural  : the regulations governing the visiting privileges of members of the opposite sex in campus dormitories
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