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Definition of Nodal rhythm
1. Noun. The normal cardiac rhythm when the heart is controlled by the atrioventricular node.
Medical Definition of Nodal rhythm
1. The cardiac rhythm when the heart is controlled by the A-V junction (including node); arising in the A-V junction, the impulse ascends to the atria and descends to the ventricles, each at varying speeds depending on site of the pacemaker. Synonym: A-V junctional rhythm, nodal bradycardia, nodal rhythm. (05 Mar 2000)