Ductus Arteriosus Definition

dŭktəs är-tîrē-ōsəs
noun
A fetal blood vessel that connects the left pulmonary artery with the descending aorta and that normally closes at birth.
American Heritage Medicine

Origin of Ductus Arteriosus

  • Modern Latin ductus duct (from Latin act of leading duct) artēriōsus arterial (from Latin artēria artery artery) (-ōsus adj. suff.)

    From American Heritage Dictionary of the English Language, 5th Edition

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