[ duhk-tuhs ahr-teer-ee-oh-sis ]
/ ˈdʌk təs ɑrˌtɪər iˈoʊ sɪs /
a fetal blood vessel that connects the left pulmonary artery directly to the descending aorta, normally closing after birth.
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Origin of ductus arteriosis
1805–15; <New Latin: literally, arterial channel
Words nearby ductus arteriosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021