a combining form meaning “pelvis,” used in the formation of compound words: pyelogram.

Also especially before a vowel, pyel-.

Origin of pyelo-

< New Latin, combining form representing Greek pýelos basin, on the model of the NL use of Latin pelvis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for pyelo-


before a vowel pyel-

combining form

denoting the renal pelvispyelonephritis

Word Origin for pyelo-

from Greek puelos trough, pan; in the sense: pelvis
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 pyelo-

before vowels pyel-, medical word-forming element, 19c., from comb. form of Greek pyelos "oblong trough, bathing-tub," used for "pelvis."

Online Etymology Dictionary, © 2010 Douglas Harper

pyelo- in Medicine



Renal pelvis:pyeloplasty.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.