- a narrowing of the lumen of a blood vessel.
- a congenital anomaly of the heart in which there is a narrowing of the aorta, resulting in abnormal blood flow.
Entomology. the condition of having the body enclosed in a hardened shell or puparium.
Origin of coarctation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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.