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coarctation

[koh-ahrk-tey-shuh n] /ˌkoʊ ɑrkˈteɪ ʃən/
noun
1.
Pathology.
  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.
Entomology. the condition of having the body enclosed in a hardened shell or puparium.
Origin
late Middle English
1400-1450
1400-50; late Middle English coartacioun pressure, constriction < Latin coar(c)tātiōn-, stem of coar(c)tātiō; see coarctate, -ion
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for coarctation
  • There are many ways to repair coarctation of the aorta.
  • coarctation of the aorta is a birth defect that causes narrowing of the aorta, the main artery of the heart.
coarctation in Medicine

coarctation co·arc·ta·tion (kō'ärk-tā'shən)
n.
A constriction, stricture, or stenosis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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