: the interval between the beginning of the P wave and the beginning of the QRS complex of an electrocardiogram that represents the time between the beginning of the contraction of the atria and the beginning of the contraction of the ventricles
Dictionary Entries Near P-R interval
Cite this Entry
“P-R interval.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/P-R%20interval. Accessed 5 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share