(Science: botany) a seaweed of a reddish brown colour, which is sometimes eaten, as in Scotland. The true dulse is Sarcophyllis edulis; the common is Rhodymenia.
alternative forms: dillisk The crimson leaf of the dulse is seen to blush like a banner bathed in slaughter. (Percival)
Origin: cf. Gael. Duileasg; duille leaf – uisge water. Cf. Whisky.