The Collaborative International Dictionary of English v.0.48:

Azedarach \A*zed"a*rach\, azederach \azederach\, n. [F.
   az['e]darac, Sp. acederaque, Pers. [=a]z[=a]ddirakht noble
   tree.]
   1. (Bot.) a handsome tree (Melia azedarach) of the mahogany
      family, native to Northern India and China, having long
      clusters of fragrant purple blossoms and small ornamental
      but inedible yellow fruits. It has been naturalized as a
      shade tree and is common in the southern United States; --
      called also, chinaberry, China tree, Pride of India,
      Pride of China, and Bead tree.

   Syn: chinaberry, chinaberry tree, China tree, Persian lilac,
        pride-of-India, azedarach, Melia azederach, Melia
        azedarach
        [1913 Webster + WordNet 1.5]

   2. (Med.) The bark of the roots of the azedarach, used as a
      cathartic and emetic.
      [1913 Webster] Azerbaidzhan

WordNet (r) 3.0 (2006):

azedarach
    n 1: tree of northern India and China having purple blossoms and
         small inedible yellow fruits; naturalized in the southern
         United States as a shade tree [syn: chinaberry,
         chinaberry tree, China tree, Persian lilac, pride-
         of-India, azederach, azedarach, Melia azederach,
         Melia azedarach]