- a narrow, fluid-filled space between the pleural membranes of the lung and the inner chest wall.
Origin of pleural cavity
First recorded in 1835–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- The potential space between the parietal and visceral layers of the pleura.pleural space
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.