A species of seaweed, Fucus spiralis, living on the Atlantic coasts of Europe and North America.

spiral wrack

plural of flat wrack

A species of brown algae, Ascophyllum nodosum; a common seaweed of the northern Atlantic Ocean.

knotted wrack

Fucus vesiculosus, seaweed widespread in the cool waters of the Atlantic and Pacific. / Nereocystis luetkeana, kelp common on the northeastern Pacific coast.

(idiomatic) Complete destruction.

Destroyed by a storm. / Stormy, beset by a storm.

plural of bladder wrack

plural of egg wrack