What is the thickened rim of a bell, struck by the clapper. Paunch mat (Naut.), a thick mat made of strands of rope, used to prevent the yard or rigging from chafing called?

paunch — The thickened rim of a bell, struck by the clapper. Paunch mat (Naut.), a thick mat made of strands of rope, used to prevent the yard or rigging from chafing. (Webster's 1913.)