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The Collaborative International Dictionary
henware

Badderlocks \Bad"der*locks\, n. [Perh. for Balderlocks, fr. Balder the Scandinavian deity.] (Bot.) A large black seaweed ( Alaria esculenta) sometimes eaten in Europe; -- also called murlins, honeyware, and henware.

Wiktionary
henware

n. A seaweed, badderlocks.