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co•arc•ta•tion



Pronunciation: (kō"ärk-tā'shun), [key]
n.
1. Pathol.
a. a narrowing of the lumen of a blood vessel.
b. a congenital anomaly of the heart in which there is a narrowing of the aorta, resulting in abnormal blood flow.
2. Entomol.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.

coarctatecoarse
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