Usnisa, Buddhist god, is a dikpala or guardian of the upward direction. This is also a collective term for a group of eight deities, including Usnisa, who are perceived as extensions of the dhyanibuddhas.
Additionally the word also describes a type of curled hairstyle found in the characteristic iconography of buddhas. The color is yellow, and attributes include the jewel, lotus, prayer wheel, and sword, and may be three-headed. A.G.H.
Jordan, Michael, Encyclopedia of Gods, New York, Facts On File, Inc. 1993, p. 273