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The Collaborative International Dictionary
coleseed

Cole \Cole\ (k[=o]l), n. [OE. col, caul, AS. cawl, cawel, fr. L. caulis, the stalk or stem of a plant, esp. a cabbage stalk, cabbage, akin to Gr. kaylo`s. Cf. Cauliflower, Kale.] (Bot.) A plant of the Brassica or Cabbage genus; esp. that form of Brassica oleracea called rape and coleseed.

Wiktionary
coleseed

n. The common rape or cole.