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Synonyms

inflammation

American  
[in-fluh-mey-shuhn] / ˌɪn fləˈmeɪ ʃən /

noun

  1. Pathology. redness, swelling, pain, tenderness, heat, and disturbed function of an area of the body, especially as a reaction of tissues to injurious agents.

  2. the act or fact of inflaming.

  3. the state of being inflamed.

inflammation British  
/ ˌɪnfləˈmeɪʃən /

noun

  1. the reaction of living tissue to injury or infection, characterized by heat, redness, swelling, and pain

  2. the act of inflaming or the state of being inflamed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
inflammation Scientific  
/ ĭn′flə-mā′shən /

  1. The reaction of a part of the body to injury or infection, characterized by swelling, heat, redness, and pain. The process includes increased blood flow with an influx of white blood cells and other chemical substances that facilitate healing.

inflammation Cultural  

  1. The response of tissue to injury or infection. Pain, heat, redness, and swelling are the four basic symptoms of inflammation.

Other Word Forms

  • subinflammation noun

Etymology

Origin of inflammation

First recorded in 1525–35; from Latin inflammātiōn-, stem of inflammātiō, from inflammāt(us) “kindled” (past participle of inflammāre “to kindle”; inflame ) + -iō -ion

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.

To explore this further, the team collected and analyzed biological samples, including blood and stool, to track changes in inflammation.

From Science Daily • Apr. 3, 2026

"It affects everyone because these toxins and heavy metals enter the body directly," he told AFP, describing "burning eyes, phlegm, and nasal inflammation."

From Barron's • Apr. 3, 2026

"It suggests new ways to intervene before patients progress to severe inflammation that can require intubation."

From Science Daily • Apr. 3, 2026

Nurses then gave him a mix of two peptides: BPC-157 and TB-500, thought to combat inflammation and aid tissue regeneration, among other things.

From Slate • Mar. 30, 2026

There was swelling and slight inflammation around each rupture in the skin.

From "Atonement" by Ian McEwan

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.