 ductus_arteriosus |
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| 1. | [ noun ] (anatomy,zoology) a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth | |
| Related terms: | blood_vessel patent_ductus_arteriosus fetus | |
| Similar spelling: |
ductus_deferens |
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