varec means the calcined ash of coarse seaweed, used for the manufacture of soda and iodine. Lexicurio rates it Sui generis — a strength score of 90 out of 100.
Etymology
French varech; of Teutonic origin. See wrack and compare vraic.
noun
- The calcined ash of coarse seaweed, used for the manufacture of soda and iodine.“Potash was scarce because of the Napoleonic Wars (1803–1815), and Bernard Courtois had resorted to varec imported from the Brittany and Normandy seacoasts [5].”
- The seaweed itself; fucus; wrack.