ductus arteriosis

[ duhk-tuhs ahr-teer-ee-oh-sis ]

/ ˈdʌk təs ɑrˌtɪər iˈoʊ sɪs /

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noun Anatomy.

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

The ductus communis choledochus again deluged the stomach, and with the customary consequences.
The Mirror of Literature, Amusement, and Instruction, No. 472|Various
The ductus arteriosus closes up about the same time as the foramen ovale.
The Matron's Manual of Midwifery, and the Diseases of Women During Pregnancy and in Childbed|Frederick Hollick
In some cases the insertion of the ductus arteriosus is lower down, so that no such mixture occurs.
The Matron's Manual of Midwifery, and the Diseases of Women During Pregnancy and in Childbed|Frederick Hollick
The ductus choledochus opens on the ventral side of the intestine immediately in front of the commencement of the spiral valve.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour

Damntus mles extr castrrum vllum ductus est et iam cervcem70 porrigbat, cum subit appruit ille commlit, qu occsus1734 dcbtur.
Selections from Viri Romae|Charles Franois L'Homond