interatrial septum

noun

Medical Definition of interatrial septum

: the wall separating the right and left atria of the heart

called also atrial septum

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Cite this Entry

“Interatrial septum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/interatrial%20septum. Accessed 1 Dec. 2020.

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