appendicitis

noun

ap·​pen·​di·​ci·​tis ə-ˌpen-də-ˈsī-təs How to pronounce appendicitis (audio)
: inflammation of the vermiform appendix

Examples of appendicitis in a Sentence

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.
Habiba Soliman said a brother, who is 16, had appendicitis in the detention center. Mike Hixenbaugh, NBC news, 16 Apr. 2026 Carter is on vacation visiting family, Teal'c is off world, Jackson is recovering from an appendicitis operation, and O'Neill is predictably on a fishing trip. Daryl Baxter, Space.com, 14 Apr. 2026 The Bucks played without All-Star and former MVP Giannis Antetokounmpo, while the Sixers were without Joel Embiid after he was stricken last week with appendicitis. CBS News, 12 Apr. 2026 Philadelphia 76ers star Joel Embiid has been diagnosed with appendicitis and underwent surgery Thursday afternoon in Houston, the team announced. Tony Jones, New York Times, 10 Apr. 2026 See All Example Sentences for appendicitis

Word History

Etymology

New Latin appendic-, appendix "vermiform appendix" + -itis

First Known Use

1886, in the meaning defined above

Time Traveler
The first known use of appendicitis was in 1886

Browse Nearby Words

Cite this Entry

“Appendicitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/appendicitis. Accessed 22 Apr. 2026.

Kids Definition

appendicitis

noun
ap·​pen·​di·​ci·​tis ə-ˌpen-də-ˈsīt-əs How to pronounce appendicitis (audio)
: inflammation of the appendix

Medical Definition

appendicitis

noun
ap·​pen·​di·​ci·​tis ə-ˌpen-də-ˈsīt-əs How to pronounce appendicitis (audio)
: inflammation of the vermiform appendix

called also epityphlitis

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