epi·​gas·​tri·​us -trē-əs How to pronounce epigastrius (audio)
: a twin teratological fetus in which one member of the pair is underdeveloped and attached to the epigastric region of the other

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Cite this Entry

“Epigastrius.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/epigastrius. Accessed 26 Mar. 2023.

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