1) Inhabitants of Tomb World call a dangerous Catacomb life form Zombie ( See Animated Corpses of Tomb World)
2) The illegal practice to use human (and other corpses of recently deceased) and reanimate them for a certain time to use their CIT implants to access banks and other Union Citizen privileged services. (See Remote Corpse)
3) Users of the Dead head drug and the associated underground society / sub culture are called Zombies.
4) Term for Undead, reanimated corpses (Legend and mythology of Earth) Zombie
(1) See Galactic Chronicles 19 : Tombworld
(2) See Galactic Chronicles 9: The Adventures of the Tigershark
(3) See Galactic Chronicles 9: The Adventures of the Tigershark