R wave

noun
\ ˈär-ˌwāv How to pronounce R wave (audio) \

Medical Definition of R wave

: the positive upward deflection in the QRS complex of an electrocardiogram that follows the Q wave

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R wave

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Cite this Entry

“R wave.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/R%20wave. Accessed 1 Dec. 2021.

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