\Mu"ral\, a. [F., fr. L. muralis, fr. murus wall. See
{Mure} a wall.]
1. Of or pertaining to a wall; being on, or in, a wall;
   growing on, or against, a wall; as, a mural quadrant.
   ``Mural breach.'' --Milton. ``Mural fruit.'' --Evelyn.
2. Resembling a wall; perpendicular or steep; as, a mural
   precipice.
{Mural circle} (Astron.), a graduated circle, in the plane of
   the meridian, attached permanently to a perpendicular
   wall; -- used for measuring arcs of the meridian. See
   {Circle}, n., 3.
{Mural crown} (Rom. Antiq.), a golden crown, or circle of
   gold indented so as to resemble a battlement, bestowed on
   him who first mounted the wall of a besieged place, and
   there lodged a standard.