stress test

noun

: an electrocardiographic test of heart function before, during, and after a controlled period of increasingly strenuous exercise (as on a treadmill)

Examples of stress test in a Sentence

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.
Now comes the biggest stress test to date on the biggest stage yet. Parker Gabriel, Denver Post, 24 Jan. 2026 Engineers frame the dance not as entertainment, but as a rigorous systems-level stress test, signaling progress toward humanoid robots capable of complex real-world tasks alongside humans. Jijo Malayil, Interesting Engineering, 19 Jan. 2026 The stadium project will dwarf the price tags of those 23 projects combined — functioning as a high-stakes stress test for an incentive tool that carries a controversial reputation. Sam McDowell, Kansas City Star, 18 Jan. 2026 What followed was a real-world stress test that Waymo’s technology failed. Ira Goldstein, New York Daily News, 18 Jan. 2026 See All Example Sentences for stress test

Word History

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of stress test was in 1955

Browse Nearby Words

Cite this Entry

“Stress test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stress%20test. Accessed 28 Jan. 2026.

Medical Definition

stress test

noun
: an electrocardiographic test of heart function before, during, and after a controlled period of increasingly strenuous exercise (as on a treadmill)
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!