extrasystole

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Definitions from WordNet

Noun extrasystole has 1 sense

extrasystole - a premature systole resulting in a momentary cardiac arrhythmia
--₁ is a kind of systole

Definitions from the Web

Extrasystole

Noun - Medical

Extrasystole refers to an abnormal heart rhythm characterized by premature contractions of the heart's ventricles or atria, leading to an irregular heartbeat.

Sample Sentence: The patient experienced occasional extrasystole, causing their heart to skip a beat.

Noun - Entertainment

In the context of film and television production, extrasystole refers to the recruitment and coordination of individuals as background actors to create a more realistic scene.

Sample Sentence: The casting director organized a massive extrasystole, gathering hundreds of people to portray concert-goers for the scene.