WordNet (r) 3.0 (2006):

family Brassicaceae
    n 1: a large family of plants with four-petaled flowers;
         includes mustards, cabbages, broccoli, turnips, cresses,
         and their many relatives [syn: Cruciferae, family
         Cruciferae, Brassicaceae, family Brassicaceae,
         mustard family]