Noun screw bean has 2 senses
  1. screw bean - spirally twisted sweet pod of screwbean mesquite that is used for fodder or ground into meal for feed
    --1 is a kind of
    pod, seedpod
    --1 is a part of
     screw bean, screwbean, tornillo, screwbean mesquite, Prosopis pubescens
  2. screw bean, screwbean, tornillo, screwbean mesquite, Prosopis pubescens - shrub or small tree of southwestern United States and northwestern Mexico having spirally twisted pods
    --2 is a kind of mesquite, mesquit
    --2 has parts: screw bean
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