halo


halo (http://definr.com/halo)

     n 1: an indication of radiant light drawn around the head of a
          saint [syn: aura, nimbus, glory]
     2: a toroidal shape; "a ring of ships in the harbor"; "a halo
        of smoke" [syn: ring, annulus, anulus, doughnut, {anchor
        ring}]
     3: a circle of light around the sun or moon