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pursed lips breathing in Medicine

pursed lips breathing

(pûrst)
n.
  1. A technique, used by patients with chronic obstructive pulmonary disease, in which air is inhaled slowly through the nose and mouth and exhaled slowly through pursed lips.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.