WordNet (r) 3.0 (2006):

family Zygophyllaceae
    n 1: small trees, shrubs, and herbs of warm arid and saline
         regions; often resinous; some poisonous: genera
         Zygophyllum, Tribulus, Guaiacum, Larrea [syn:
         Zygophyllaceae, family Zygophyllaceae, bean-caper
         family]