noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A kind of arrhythmia caused by the presence and function of a secondary pacemaker in the heart, which works in parallel with the S-A node. countable, uncountable

Etymology

From para- + systole.

Related phrases

s node

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.