anacatadidymus
an·a·kat·a·did·y·mus
, anacatadidymus (an'ă-kat'ă-did'i-mŭs),Conjoined twins united in the middle but separated above and below.
Synonym(s): dicephalus dipygus
[G. ana, up, + kata, down, + didymos, twin]
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