[pros″o-po-thor″ah-kop´ah-gus] conjoined twins fused from the face to the thorax.
pros·o·po·thor·a·cop·a·gus
(pros'ō-pō-thōr'ă-kop'ă-gŭs), Conjoined twins attached by the face and thorax; a variety of cephalothoracopagus. See: conjoined twins. [prosopo- + G. thōrax, chest, + pagos, something fastened]