Whilk \Whilk\, n. [See {Whelk} a mollusk.] 1. (Zo["o]l.) A kind of mollusk, a whelk. [Prov. Eng.] 2. (Zo["o]l.) The scoter. [Prov. Eng.] Whilk \Whilk\, pron. Which. [Obs. or Scot.] Note: Whilk is sometimes used in Chaucer to represent the Northern dialect.