Webster's Revised Unabridged Dictionary · 1913

Mural

Mural , adjective

[French, from Latin muralis, from 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.
Collocations (2)
Mural circle (Astronomy) , 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. Antiquities) , 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.