caul ‧ dron BrE AmE , caldron /ˈkɔːldrən $ ˈkɒːl-/ noun [countable]
[ Date: 1200-1300 ; Language: Old North French ; Origin: cauderon , from caudiere 'cauldron' , from Latin caldaria 'warm % (h' , from calidus 'warm' ]
a large round metal pot for boiling liquids over a fire:
a witch’s cauldron