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a combining form meaning “pelvis,” used in the formation of compound words: pyelogram.
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021


What does pyelo- mean?

Pyelo- is a combining form used like a prefix meaning “pelvis.” It is used in medical terms, especially in anatomy.

Pyelo- ultimately comes from the Greek pýelos, meaning “basin.” Basin? Learn more at our entry for pelvis. A related combining form indicating pelvis is pelvio.

What are variants of pyelo-?

When combined with words or word elements that begin with a vowel, pyelo- becomes pyel-, as in pyelitis (using the equivalent form of pyel- in New Latin).

Examples of pyelo-

One medical term that features the combining form pyelo- is pyelotomy, “incision into the pelvis.”

The form pyelo- means “pelvis,” as we know. The second part of the word, -tomy, is a combining form meaning “cutting, incision.” Pyelotomy literally translates to “pelvis incision.”

What are some words that use the combining form pyelo-?

What are some other forms that pyelo- may be commonly confused with?

Break it down!

The combining form -gram is used to mean “image,” often to describe the images from x-rays or other medical imaging techniques. With this in mind, what is a pyelogram?

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

Medical definitions for pyelo-


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