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Definition of arrhythmia noun from the Oxford Advanced Learner's Dictionary

arrhythmia

noun
 
/əˈrɪðmiə/,
 
/eɪˈrɪðmiə/
 
/əˈrɪðmiə/,
 
/eɪˈrɪðmiə/
 [uncountable] (medical)
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  1. a condition in which the heart does not beat in a regular way
    • The doctors are investigating the cause of his recent episodes of arrhythmia.
    Topics Health problemsc2
    Word OriginLate 19th century: from Greek arruthmia ‘lack of rhythm’ from a- ‘without’ + rhuthmos.
Check pronunciation: arrhythmia

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trait
noun
 
 
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