1. a combining form meaning “side,” “rib,” “lateral,” “pleura,” used in the formation of compound words: pleuropneumonia.
Also especially before a vowel, pleur-.

Origin of pleuro-

see origin at pleura, -o- Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pleuro-


before a vowel pleur-

combining form
  1. of or relating to the sidepleurodont; pleurodynia
  2. indicating the pleurapleurotomy

Word Origin for pleuro-

from Greek pleura 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 pleuro-

before vowels pleur-, word-forming element meaning "pertaining to the side; pertaining to the pleura," from comb. form of Greek pleura (see pleura).

Online Etymology Dictionary, © 2010 Douglas Harper

pleuro- in Medicine


  1. Side; lateral:pleurocentrum.
  2. Pleura; pleural:pleurotomy.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.