[ploo r-uh]
See more synonyms for pleura on
noun, plural pleu·rae [ploo r-ee] /ˈplʊər i/ for 1.
  1. Anatomy, Zoology. a delicate serous membrane investing each lung in mammals and folded back as a lining of the corresponding side of the thorax.
  2. plural of pleuron.

Origin of pleura

1655–65; < New Latin < Greek pleurá (singular) side, rib


[ploo r-on]
noun, plural pleu·ra [ploo r-uh] /ˈplʊər ə/. Entomology.
  1. the lateral plate or plates of a thoracic segment of an insect.

Origin of pleuron

First recorded in 1700–10, pleuron is from the Greek word pleurón rib, (plural) side Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for pleura

bronchi, alveolus, pleura, hip, ham, thigh, hand, quarter, wing, side, loin, pleuron

Examples from the Web for pleura

Historical Examples of pleura

British Dictionary definitions for pleura


noun plural pleurae (ˈplʊəriː)
  1. the thin transparent serous membrane enveloping the lungs and lining the walls of the thoracic cavity
  2. the plural of pleuron
Derived Formspleural, adjective

Word Origin for pleura

C17: via Medieval Latin from Greek: side, rib


noun plural pleura (ˈplʊərə)
  1. the part of the cuticle of arthropods that covers the lateral surface of a body segment

Word Origin for pleuron

C18: from Greek: side
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pleura

early 15c., medical Latin, from Greek pleura "side of the body, rib," also "flank of an army, page of a book," of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper

pleura in Medicine


n. pl. pleu•rae (plurē)
  1. The thin serous membrane that envelops each lung and folds back to make a lining for the chest cavity.
Related formspleural adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

pleura in Science


Plural pleurae (plurē)
  1. A membrane that encloses each lung and lines the chest cavity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.