Shamsa
In Islamic art, a shamsa (Persian: شمسه shamseh, Arabic: شمسة shums, Ottoman Turkish: شمسه [Turkish: Şemse]) is an intricately decorated rosette or medallion which is used in many contexts, including manuscripts, carpets, ornamental metalwork and architectural decoration such as the underside of domes. It can take a number of overall shapes, from circles to stars.