appendectomy

noun

ap·​pen·​dec·​to·​my ˌa-pən-ˈdek-tə-mē How to pronounce appendectomy (audio)
ˌa-ˌpen-
plural appendectomies
: surgical removal of the vermiform appendix

Did you know?

The appendix is a tiny tube attached to the large intestine that no longer has any real function. Appendicitis—inflammation and swelling of the appendix, usually as a result of bacterial infection—generally occurs between the ages of 10 and 19, and is the most common reason for emergency surgery in the U.S. today. Since the appendix has so little to do, appendectomies normally have no negative aftereffects at all. If appendicitis is ignored, bacteria may enter the blood and infect other parts of the body.

Examples of appendectomy in a Sentence

The surgeon performed an appendectomy on her.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But several large studies have since found no decrease in fertility after appendectomy – in some cases, researchers found a small increase in pregnancy rates. Lilia Goncharova, The Conversation, 9 Mar. 2026 Broward parent Mike O’Hanlon, who is on a group Blue Cross Blue Shield plan, said his son needed an emergency appendectomy, which by law must be covered. Cindy Krischer Goodman, Sun Sentinel, 8 Mar. 2026 Austria’s Hannah Prock was only 30 points back of Taubitz entering the race — but couldn’t slide on Saturday following an emergency appendectomy. ABC News, 28 Feb. 2026 The first appendectomy in Britain took place in 37 years earlier. Scott Lafee, San Diego Union-Tribune, 6 Jan. 2026 See All Example Sentences for appendectomy

Word History

Etymology

append(ix) + -ectomy

First Known Use

1891, in the meaning defined above

Time Traveler
The first known use of appendectomy was in 1891

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Cite this Entry

“Appendectomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/appendectomy. Accessed 19 Mar. 2026.

Kids Definition

appendectomy

noun
ap·​pen·​dec·​to·​my ˌap-ən-ˈdek-tə-mē How to pronounce appendectomy (audio)
ˌap-ˌen-
plural appendectomies
: surgical removal of the human appendix

Medical Definition

appendectomy

noun
ap·​pen·​dec·​to·​my ˌap-ən-ˈdek-tə-mē How to pronounce appendectomy (audio)
plural appendectomies
: surgical removal of the vermiform appendix

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