Conjoined twins fused in the cephalothoracic region but with the buttocks and parts below doubled. ... See: conjoined twins. ... See: duplicitas posterior. ... Origin: pygo-+ G. Didymos, twin ... (05 Mar 2000) ... 
(pi″go-did´ĭ-mәs) conjoined twins fused in the cephalothoracic region, with double hips and pelvis.
Type: Term Pronunciation: pī′gō-did′i-mŭs Definitions: 1. Conjoined twins with a single cephalothoracic region but with the buttocks and parts below doubled. See: conjoined twins, under twin
pygodidymus A fetus with double hips and pelvis.