thoracodidymus
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thoracopagus — Conjoined twins with union in the thoracic region. See conjoined twins, under twin. SYN: synthorax. [thoraco + G. pagos, something fastened] * * * tho·ra·cop·a·gus .thōr ə käp ə gəs, .thȯr n, pl gi .jī conjoined twins that are united at the… … Medical dictionary