Lungwort definition

Any of several Eurasian plants of the genus Pulmonaria, having coiled clusters of blue or purple flowers and formerly used in treating respiratory disorders.

Any of various plants of the genus Mertensia, having drooping clusters of tubular, usually blue flowers.

Any of various plants formerly used in treating lung diseases; esp., any of a genus (Pulmonaria) of European plants of the borage family, with large, spotted leaves and clusters of blue or purple flowers.