S wave

noun

: a wave (as from an earthquake) in which the propagated disturbance is a shear in an elastic medium (such as the earth) compare pressure wave

Word History

Etymology

secondary

First Known Use

1913, in the meaning defined above

Time Traveler

The first known use of S wave was in 1913

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Cite this Entry

Style

“S wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/S%20wave. Accessed 21 Mar. 2023.

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Medical Definition

S wave

noun

ˈes-ˌ

: the negative downward deflection in the QRS complex of an electrocardiogram that follows the R wave

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