Bras·si·ca prop. n.  Bot. A genus of plants embracing several species and varieties differing much in appearance and qualities: such as the common cabbage (Brassica oleracea), broccoli, cauliflowers, etc.; the wild turnip (Brassica campestris); the common turnip (Brassica rapa); the rape or coleseed (Brassica napus), etc.
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 Brassica napus
      n : Eurasian plant cultivated for its seed and as a forage crop
          [syn: rape, colza]