ductus arteriosus

Definitions of ductus arteriosus
  1. noun
    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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    types:
    patent ductus arteriosus
    a ductus arteriosus that failed to close at birth; may require surgical correction
    type of:
    blood vessel
    a vessel in which blood circulates
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