Source : Webster's Revised Unabridged Dictionary (1913)

Ylang-ylang \Y*lang`-y*lang"\, n.
   See {Ihlang-ihlang}.

Source : WordNet®

ylang-ylang
     n : evergreen Asian tree with aromatic greenish-yellow flowers
         yielding a volatile oil; widely grown in the tropics as
         an ornamental [syn: {ilang-ilang}, {Cananga odorata}]