Biol. a wall, as of a hollow organ, cavity, or cell: usually used in pl.
Origin of pariesModern Latin ; from L, a wall ; from Indo-European base an unverified form (s)per-, a bar, spear from source spar, spear
often parietes A wall of a body part, organ, or cavity.
Origin of pariesLatin pari&emacron;s, wall.
From Latin pariÄ“s (“wall of a house or room").