1. Plural of pleura; the thin membranes that line the lungs and chest cavity.
Usage: Medical/anatomical term; Always used in plural form when referring to multiple membranes

Examples

• The pleuras protect the lungs and allow them to move smoothly during breathing.
• Inflammation of the pleuras is a condition called pleurisy.
• Doctors examined the pleuras during the thoracic surgery.
• The pleuras secrete a fluid that reduces friction between the lungs and chest wall.
• Damage to the pleuras can cause chest pain and difficulty breathing.