‖prop. n. [ L., cabbage. ] (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. [ 1913 Webster ]
n. a natural family of plants with four-petaled flowers.
a. [ L. brassica cabbage. ] (Bot.) Related to, or resembling, the cabbage, or plants of the Cabbage family. [ 1913 Webster ]