extrasystolic


ex·tra·sys·to·le

E0302400 (ĕk′strə-sĭs′tə-lē)n. A premature contraction of the heart, resulting in momentary cardiac arrhythmia.
ex′tra·sys·tol′ic (-sĭ-stŏl′ĭk) adj.
Thesaurus
Adj.1.extrasystolic - of or relating to or happening during an extrasystole