tachycardia
/ˌtakɪˈkɑːdɪə
/noun [mass noun]
An abnormally rapid heart rate.Rapid heartbeat turns into tachycardia and a heart attack is a myocardial infarction....
- Caffeine may also have a direct effect on the cardiovascular system of the fetus leading to tachycardia and other arrhythmias.
- However, a patient activated electrocardiograph showed ventricular tachycardia during a symptomatic spell.
Origin
Late 19th century: from tachy- 'swift' + Greek kardia 'heart'.