Poisson's ratio

noun

: the ratio of transverse to longitudinal strain in a material under tension

Word History

Etymology

S. Poisson

First Known Use

1866, in the meaning defined above

Time Traveler

The first known use of Poisson's ratio was in 1866

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Poisson's ratio

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Style

“Poisson's ratio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Poisson%27s%20ratio. Accessed 24 May. 2025.

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Poisson's ratio

noun

Word History

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