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.
If constantly thinking up new meals is a stressor for you, this may sound like good news. Korin Miller, SELF, 27 Mar. 2026 This can happen after any major physical or emotional stressor, like surgery, illness or childbirth. Nicole Hernandez, USA Today, 26 Mar. 2026 There wasn’t enough evidence to say definitively if any other symptoms experienced by menopausal women were due to menopause, aging, or midlife stressors. Patricia Bencivenga, STAT, 26 Mar. 2026 Humans were historically safer in groups, so the brain interprets isolation as a stressor, releasing cortisol that can lead to inflammation and illness, explains neuroscientist Ben Rein, author of Why Brains Need Friends. Holly Haber, Dallas Morning News, 20 Mar. 2026 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

Browse Nearby Words

Cite this Entry

“Stressor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stressor. Accessed 2 Apr. 2026.

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
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