preductal

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Proximal to a ductus (for example, the ductus arteriosus). not-comparable
    — Aortic coarctation is congenital focal narrowing of the aorta in the region of the ductus arteriosus. It may be preductal (proximal to the ductus, illustrated on the right [in the original]), periductal, or postductal.

词源

From pre- + ductal.
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