A concrete juice, or gum resin, produced by several
   species of trees in Siam, Ceylon, and Malabar. It is brought in masses,
   or cylindrical rolls, from Cambodia, or Cambogia, -- whence its name.
   The best kind is of a dense, compact texture, and of a beatiful reddish
   yellow. Taking internally, it is a strong and harsh cathartic and
   emetic.