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.
uk â /ËheÉª.lÉÊ/ us â /ËheÉª.loÊ/ plural haloes or halos. âº [ C ] a ring of light around the head of a holy person in a religious drawing or painting. âº [ C usually singular ] a bright circle of light around something, or something that looks like this: the halo around the moon. a halo of blonde curls.