pericardial friction rub
noun
pericardial fric·tion rub
-ˈfrik-shən-ˌrəb 
: the auscultatory sound produced by the rubbing together of inflamed pericardial membranes in pericarditis
called also pericardial rub
Cite this Entry
“Pericardial friction rub.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/pericardial%20friction%20rub. Accessed 27 Nov. 2025.
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