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.
The death was ruled natural as a result of an appendicitis rupture. Matthew Rodriguez, CBS News, 12 Dec. 2025 And little kids in his neighborhood died of things like appendicitis and influenza. Cynthia Littleton, Variety, 27 Nov. 2025 What initially presented as a mild sickness soon worsened; he was diagnosed with pneumonia and appendicitis. Michael Wells, Kansas City Star, 22 Oct. 2025 Looking back, the chain of events — the appendicitis, the podcast connection, the impossible appointment, the miraculous cancellation — feels almost too extraordinary to be a coincidence. MSNBC Newsweek, 8 Oct. 2025 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 23 Dec. 2025.

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

More from Merriam-Webster on appendicitis

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