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Ductus arteriosus
/dˈʌktəs ɑːtˈiəɹɪˌɒsəs/
/dˈʌktəs ɑːɹtˈiəɹɪˌɑːsəs/Ductus arteriosus
01
a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth
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