Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. The period of time intervening between the systole and diastole of the heart.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

para- +‎ systole

Examples

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