Source : Webster's Revised Unabridged Dictionary (1913)

Omphalocele \Om"pha*lo*cele`\, n. [Gr. ? the navel + ? a tumor:
   cf.F. omphaloc['e]le.] (Med.)
   A hernia at the navel.

Source : WordNet®

omphalocele
     n : protrusion of the intestine and omentum through a hernia in
         the abdominal wall near the navel; usually self
         correcting after birth [syn: {umbilical hernia}]