Institor Law and Legal Definition
An institor is a person on whom the immediate management of a store, shop, or business has been committed by a master or owner. The charge given to a clerk to manage a shop is called institorial power. The master is liable for the acts done by the institor. This is because all acts that the institor does are on the behalf of the master. An institor acts as an agent of the owner of the shop. It is immaterial whether the institor was employed for making sale in a store, or whether charged with any other business. This is a Latin term used in Roman law.