1.  mihrab(n = noun.artifact) - (Islam) a design in the shape of niche in a Muslim prayer rug; during worship the niche must be pointed toward Mecca;
is a kind of design, figure, pattern
is a part of prayer mat, prayer rug

2.  mihrab(n = noun.artifact) - (Islam) a niche in the wall of a mosque that indicates the direction of Mecca;
is a kind of niche, recess
is a part of mosque

mihrab, n. a niche or slab in a mosque, used to show the direction of Mecca.

Etymology:
Arab. mihrab praying-place