(1):

(a.) Of or pertaining to the style of work called mosaic; formed by uniting pieces of different colors; variegated; tessellated; also, composed of various materials or ingredients.

(2):

(n.) A picture or design made in mosaic; an article decorated in mosaic.

(3):

(n.) A surface decoration made by inlaying in patterns small pieces of variously colored glass, stone, or other material; - called also mosaic work.

(4):

(a.) Of or pertaining to Moses, the leader of the Israelites, or established through his agency; as, the Mosaic law, rites, or institutions.