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.
Halogen (noun) involves five elements such as fluorine, chlorine, bromine, iodine and astatine. That part in a group VIIA of the periodic table. Halogen is a negative ions that react with most metals to form salts. Is a group in the periodic table consisting of five chemically related elements with similar properties.