appendicitis

American  

[uh-pen-duh-sahy-tis] / əˌpɛn dəˈsaɪ tɪs /

noun

Pathology.

1. inflammation of the vermiform appendix.

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appendicitis British  

/ əˌpɛndɪˈsaɪtɪs /

noun

1. inflammation of the vermiform appendix

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appendicitis Scientific  

/ ə-pĕn′dĭ-sī′tĭs /

1. Inflammation of the appendix, usually caused by a blockage or infection.

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appendicitis Cultural  

1. Inflammation of the appendix.

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Other Word Forms

• pseudoappendicitis noun

Etymology

Origin of appendicitis

1885–90, < New Latin, equivalent to Latin appendic- (stem of appendix ) appendix + New Latin -ītis -itis

Explanation

Appendicitis is a painful medical condition caused by a swollen appendix. To keep the appendix from bursting, doctors often perform surgery to remove the appendix of patients who have appendicitis. People suffering from appendicitis often end up in the emergency room, because it causes so much pain. The pain of appendicitis usually starts near the belly button and spreads throughout the lower right part of the abdomen as the appendix becomes more swollen and inflamed. Appendicitis was first identified and named in the 1880s, from the Latin root appendix, "something attached," which describes the way your appendix is attached to your intestine.

Example Sentences

Physicians treating patients after car crashes or appendicitis have spotted clusters of pearls in the stomach and intestines.

From Science Daily • Mar. 1, 2026

Otamendi Hospital said she underwent laparoscopic surgery, which confirmed the diagnosis of "appendicitis with localized peritonitis," and that she was recovering "without postoperative complications".

From Barron's • Dec. 21, 2025

The 30-year-old insurance salesperson — who was among the 25 women vying for “Bachelor” Grant Ellis’ final rose — confirmed Tuesday that she left the series due to appendicitis.

From Los Angeles Times • Feb. 11, 2025

It is considered opportunistic because it takes advantage of imaging that has already been done for another clinical purpose – be it suspected cancer, chest infection, appendicitis or belly pain.

From BBC • Jan. 16, 2025

In 1920, when I was still only three, my mother’s eldest child, my own sister Astri, died from appendicitis.

From "Boy: Tales of a Childhood" by Roald Dahl