inflammation

noun

in·​flam·​ma·​tion ˌin-flə-ˈmā-shən How to pronounce inflammation (audio)
Synonyms of inflammationnext
1
: a local response to cellular injury that is marked by capillary dilatation, leukocytic infiltration, redness, heat, and pain and that serves as a mechanism initiating the elimination of noxious agents and of damaged tissue
2
: the act of inflaming : the state of being inflamed

Examples of inflammation in a Sentence

The drug is used to reduce inflammation. inflammations of the throat and ears
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.
Its weightless-yet-revitalizing feel is thanks to moisturizing squalane, Japanese lemon balm and sunflower seed wax, which calm inflammation, improve the skin barrier, and lock in hydration. Grace Scollo, InStyle, 4 July 2026 Right now, the unit is missing Carlos Rodón, who went on the IL with elbow inflammation on Friday, and Max Fried, who is working his way back from a left elbow bone bruise. Gary Phillips, New York Daily News, 4 July 2026 Right-hander Grayson Rodriguez, who is out because of back inflammation, will make another rehab start on Saturday for Triple-A Salt Lake. Jeff Fletcher, Oc Register, 4 July 2026 The mice that were prevented from scratching and those lacking the itch-sensing neuron experienced less inflammation. Teresa Mull, FOXNews.com, 4 July 2026 See All Example Sentences for inflammation

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of inflammation was in the 15th century

Browse Nearby Words

Cite this Entry

“Inflammation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inflammation. Accessed 5 Jul. 2026.

Kids Definition

inflammation

noun
in·​flam·​ma·​tion ˌin-flə-ˈmā-shən How to pronounce inflammation (audio)
1
: the act of inflaming : the state of being inflamed
2
: a bodily response to injury in which heat, redness, pain, swelling, and more than the usual amount of blood are present in the area affected

Medical Definition

inflammation

noun
in·​flam·​ma·​tion ˌin-flə-ˈmā-shən How to pronounce inflammation (audio)
: a local response to cellular injury that is marked by capillary dilatation, leukocytic infiltration, redness, heat, pain, swelling, and often loss of function and that serves as a mechanism initiating the elimination of noxious agents and of damaged tissue
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