'Himanthalia lorea' definitions:

Definition of 'Himanthalia lorea'

From: GCIDE
  • Sea thongs \Sea" thongs`\ (?; 115). (Bot.) A kind of blackish seaweed (Himanthalia lorea) found on the northern coasts of the Atlantic. It has a thonglike forking process rising from a top-shaped base. [1913 Webster]