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coarctation: Meaning and Definition of

co•arc•ta•tion

Pronunciation: (kō"ärk-tā'shun), [key]
— n.
    1. a narrowing of the lumen of a blood vessel.
    2. a congenital anomaly of the heart in which there is a narrowing of the aorta, resulting in abnormal blood flow.
  2. the condition of having the body enclosed in a hardened shell or puparium.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
coarctate coarse
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