Croton

Pronunciation: kr?"t?n
n.
  1. A genus of euphorbiaceous plants belonging to tropical countries.
    2. Croton oil (Med.),
    a viscid, acrid, brownish yellow oil obtained from the seeds of Croton Tiglium, a small tree of the East Indies. It is a most powerful drastic cathartic, and is used externally as a pustulant.