Meaning & use
tachycardia
Last updated
An abnormally fast heart rate, typically over 100 beats per minute at rest.
See it in a sentence
The doctor diagnosed him with tachycardia after his resting heart rate stayed above 120.
Anxiety and caffeine can both trigger episodes of tachycardia in sensitive individuals.
A note on using this word
A medical term whose opposite is 'bradycardia,' an abnormally slow heart rate; both are named using Greek roots for 'fast' and 'slow.'
Words with an opposite meaning
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