acardia

noun
acar·​dia | \ (ˈ)ā-ˈkär-dē-ə How to pronounce acardia (audio) \

Medical Definition of acardia

: congenital absence of the heart Certain anomalies, such as conjoined twins or acardia, are unique to multiple pregnancies. — David A. Paul, in Neonatology, 2009

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