stressor

noun

stress·​or ˈstre-sər How to pronounce stressor (audio) -ˌsȯr How to pronounce stressor (audio)
: a stimulus that causes stress

Examples of stressor in a Sentence

Credit card debt is a major stressor in her life.
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.
The comment is a nod to the stoic—or perhaps desensitized—demeanor of younger travelers in the face of stressors that rattle many. Soo Kim, MSNBC Newsweek, 22 Oct. 2025 The condition’s spread suggested it was caused by an infectious agent rather than a pollutant or environment stressor. JSTOR Daily, 17 Oct. 2025 Despite these stressors, Joshua has faith that his dad will be found. Sam Gillette, PEOPLE, 17 Oct. 2025 By 2050, scientists warn, nearly half of the Amazon rain forest could face multiple stressors. Alexandra A Phillips, The Conversation, 13 Oct. 2025 See All Example Sentences for stressor

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of stressor was in 1950

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Cite this Entry

“Stressor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stressor. Accessed 23 Oct. 2025.

Medical Definition

stressor

noun
stress·​or ˈstres-ər How to pronounce stressor (audio) -ˌȯ(ə)r How to pronounce stressor (audio)
: a stimulus that causes stress
psychological stressors
Last Updated: - Updated example sentences
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