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a combining form representing ileum in compound words: ileostomy.
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The rainy weather could not ________ my elated spirits on my graduation day.
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Also especially before a vowel, ile-.

Origin of ileo-

From New Latin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What does ileo- mean?

Ileo- is a combining form used like a prefix representing the word ileum, the third and lowest division of the small intestine. It is often used in medical terms, especially in anatomy and pathology.

Ileo- ultimately comes from the Latin īlia, meaning “side of the body between hips and groin; guts.”

What are variants of ileo-?

When combined with words or word elements that begin with a vowel, ileo- becomes ile-, as in ileectomy.

Examples of ileo-

One example of a medical term that features the combining form ileo- is ileotomy, meaning “incision into the ileum.”

The combining form ileo- means “ileum,” as we have seen. The second part of the word, -tomy, means “cutting, incision.” Ileotomy literally translates to “ileum incision.”

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

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

Break it down!

The combining form -stomy refers to artificial openings surgeons make into the body. What part of the body does an ileostomy involve a surgical opening of?

How to use ileo- in a sentence

British Dictionary definitions for ileo-


before a vowel ile-

combining form
indicating the ileumileostomy
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 ileo-


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