Rotating image of human brain, illustrating the lateral sulcus in the brain. The term sulcus (pl. sulci) is a general descriptive term for a furrow or fissure.
Halo may refer to: 1  Halo (religious iconography), a glow or ring of light around a head or person in art. 2  Halo (series), video game franchise.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  aura, aureole, halo, nimbus, glory, gloriole(noun) an indication of radiant light drawn around the head of a saint. 2  ring, halo, annulus, doughnut, anchor ring(noun) a toroidal shape. 3  halo(noun) a circle of light around the sun or moon.