A lozenge (â—Š) is a form of rhombus. The definition of lozenge is not strictly fixed, and it is sometimes used simply as a synonym for rhombus. Most often, though, lozenge refers to a thin rhombus — a rhombus with acute angles of 45Â°.http://mathworld.wolfram.com/Lozenge.html Definition of lozenge at Mathworld web site The lozenge shape is often used in parquetry and as decoration on ceramics, silverware, and textiles.
One of the Eight Precious Objects, a symbol of victory. The lozenge has been related to various objects including a headdress, and, when two of them are placed together, represent a musical instrument.