Source : Webster's Revised Unabridged Dictionary (1913)

Apomorphia \Ap`o*mor"phi*a\, Apomorphine \Ap`o*mor"phine\, n.
   [Pref. apo- + morphia, morphine.] (Chem.)
   A crystalline alkaloid obtained from morphia. It is a
   powerful emetic.

Source : WordNet®

apomorphine
     n : a morphine derivative that is not as strong as morphine;
         used as an emetic and in small doses as a sedative