derodidymus
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dicephalus — Symmetrical conjoined twins with two separate heads. See conjoined twins, under twin. SYN: bicephalus, diplocephalus. [G. di , two, + kephale, head] d. diauchenos a d. with separate necks. SYN: derodidymus. d. dipus dibrachius a d. in which there … Medical dictionary