sigmoid
Americanadjective
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shaped like the letter C.
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shaped like the letter S.
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of, relating to, or situated near the sigmoid flexure of the large intestine.
adjective
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shaped like the letter S
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of or relating to the sigmoid colon of the large intestine
noun
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012Other Word Forms
- postsigmoid adjective
- postsigmoidal adjective
- sigmoidally adverb
Etymology
Origin of sigmoid
First recorded in 1660–70, sigmoid is from the Greek word sigmoeidḗs shaped like a sigma. See sigma, -oid
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In July 2021, surgeons removed half of his colon due to a narrowing of the sigmoid portion of his large intestine.
From Washington Times
In July of 2021, Francis had half of his colon removed after a narrowing of the sigmoid portion of the large intestine, the Associated Press reported at the time.
From Washington Times
In surgeries like the one Francis most likely underwent, doctors excise a part of the colon called the sigmoid colon where diverticulitis is most common.
From New York Times
His full cause of death has been recorded by the coroner as "1a liver failure" and "1b metastatic sigmoid adenocarcinoma and systemic listeria infection".
From BBC
It’s a nice idea, but it’s still on the lower end of the sigmoid curve.
From The Guardian
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
