in the Old Testament of the Bible, a woman who was turned into a pillar (=a tall upright block) of salt by God, because she disobeyed his command not to look back when she and her family were escaping from Sodom, the city that God was going to destroy
(Old Testament) when God destroyed Sodom and Gomorrah, Lot and his family were told to flee without looking back; Lot's wife was disobedient and was immediately changed into a pillar of salt