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.
1. (Astronomy) a circle of light around a luminous body, usually the moon. 2. (Astronomy) Also called: aureole the outermost region of the sun's atmosphere, visible as a faint halo during a solar eclipse. 3. (Architecture) architect the flat vertical face of a cornice just above the soffit. 4. something resembling a corona or halo.