Source : Webster's Revised Unabridged Dictionary (1913)

Ipomoeic \Ip`o*m[oe]"ic\, a. (Chem.)
   Pertaining to, or designating, an acid obtained by the
   oxidation of convolvulin (obtained from jalap, the tubers of
   {Ipom[oe]a purga}), and identical in most of its properties
   with sebacic acid.