xiphopagus noun 2adjective 1forms 1 noun2 •Either of a pair of congenitally joined twins (Siamese twin) united at the xiphoid process.Dr. Chapot-Prevost, who successfully operated upon the only other living xiphopagus, has just published a report of his examination of the new living Chinese twins, Liou-Tang-Sen and Liou-Seng-Sen. — 1901 •The condition of being such a twin.They were born in the East Indies, and make the eighth case of xiphopagus reported. — 1893 adjective1 •United at the xiphoid process.Of particular interest in the Section on Obstetrics is the detailed article touching on the xiphopagus twins Radica and Doodica. — 1903 formsxiphopagi
