单词	extrasystole
释义	extrasystole noun ex·​tra·​sys·​to·​le ˌek-strə-ˈsi-stə-(ˌ)lē  : a premature beat of one of the chambers of the heart that leads to momentary arrhythmia Word History Etymology New Latin First Known Use circa 1900, in the meaning defined above Medical Definition extrasystole noun ex·​tra·​sys·​to·​le -ˈsis-tə-(ˌ)lē  : a prematurely occurring beat of one of the chambers of the heart that leads to momentary arrhythmia but leaves the fundamental rhythm unchanged called also premature beat
随便看	nonchalantness noncharacter noncharacters aediles aedileships aedility aedine aedoeagi aedoeagus AeE AEF aegagri aegagropila aegagropilae aegagropilas aegagropile aegagropiles aegagropilous aegagrus aegates islands Aegean Aegean Islands Aegean Sea aegeaner aegeanest

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