Conjoined twins attached by the face and chest; a variety of cephalothoracopagus. ... See: conjoined twins. ... Origin: prosopo-+ G. Thorax, chest, + pagos, something fastened ... (05 Mar 2000) ... 
(pros″o-po-thor″ә-cop´ә-gәs) conjoined twins fused from the face to the thorax.
Type: Term Pronunciation: pros′ō-pō-thōr′ă-kop′ă-gŭs Definitions: 1. Conjoined twins attached by the face and thorax; a variety of cephalothoracopagus. See: conjoined twins, under twin
prosopothoracopagus That form of cephalothoracopagus in which the union of the twins specifically involves the face and the thorax, as opposed to the union of other parts of the head and the thorax.