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sonorous rale

(sŏnərəs, sə-nôr-)
n.
  1. A cooing or snoring sound heard on auscultation, often produced by the vibration of a projecting mass of viscid secretion in a large bronchus.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.