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.
Older adults are vulnerable to the impact of cumulative stress, which is the buildup of stressors over time, exceeding one’s ability to cope. Helen Dennis, Daily News, 19 Apr. 2026 There’s something behind the scenes — an emotional pattern, a habit or even a secret stressor — that’s slowly catching up with you. Valerie Mesa, PEOPLE, 17 Apr. 2026 This enables plants a better chance of warding off pests, disease, and climatic stressors. Samantha Johnson, Martha Stewart, 17 Apr. 2026 According to the Social Readjustment Rating Scale, which quantifies the magnitude of certain life stressors, child loss is one of the most devastating losses a person can experience. Literary Hub, 15 Apr. 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 23 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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