inflammation

noun

in·​flam·​ma·​tion ˌin-flə-ˈmā-shən 

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

Whole wheat bread is rich in fiber, which promotes regularity, fuels gut microbes, and reduces inflammation. — Kirsten Nunez, Martha Stewart, 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

Green apples are lower in sugar, higher in fiber, and richer in polyphenol antioxidants, which may help reduce inflammation. — Cristina Mutchler, Verywell Health, 3 July 2026

The Dodgers’ three-time All-Star catcher has been on the IL since June 8 because of what the Dodgers list as neck inflammation. — Bill Shaikin, Los Angeles Times, 2 July 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing inflammation

• anti-inflammation

Rhymes for inflammation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids Definition

inflammation

noun

in·​flam·​ma·​tion ˌin-flə-ˈmā-shən 

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 

: 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