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.
Cortana may refer to: 1  Cortana (software) , an intelligent personal assistant. 2  Cortana (Halo) , a fictional artificial intelligence character in the Halo franchise. 3  Cortana (gastropod) , a gastropod genus.