defense mechanism

noun

1
: an often unconscious mental process (such as repression) that makes possible compromise solutions to personal problems
2
: a defensive reaction by an organism

Examples of defense mechanism in a Sentence

She is projecting her anger on you as a defense mechanism. the cell's normal defense mechanisms against infection
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.
Orchestrated by malicious, highly skilled threat actors, Black Kite’s research further suggests that these attacks are increasingly aimed at smaller businesses (anual revenue less then $20 million) that often have fewer sophisticated defense mechanisms in place. Sandra Pretorius, Forbes, 1 Nov. 2024 Related article Woolly rhino found preserved in Russian permafrost after 32,000 years Fireflies glow for a multitude of reasons, most commonly as a defense mechanism and a way to communicate and attract mates. Taylor Nicioli, CNN, 24 Oct. 2024 While some of the effects can be dire, the ocean does have some defense mechanisms in place. Devika Rao, theweek, 10 Oct. 2024 There’s also this analogy of war and defense mechanisms and the hard, brutal reality of that. Kyle Denis, Billboard, 18 Oct. 2024 See all Example Sentences for defense mechanism 

Word History

First Known Use

1909, in the meaning defined at sense 1

Time Traveler
The first known use of defense mechanism was in 1909

Dictionary Entries Near defense mechanism

Cite this Entry

“Defense mechanism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defense%20mechanism. Accessed 22 Nov. 2024.

Medical Definition

defense mechanism

noun
1
: an often unconscious mental process (as repression, projection, or sublimation) that makes possible compromise solutions to personal problems
2
: a defensive reaction by an organism

More from Merriam-Webster on defense mechanism

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