HealthAugust 3, 2026
electrocardiogram
ee-LEK-tro-KAR-dee-uh-gram
Definition
A medical test that records the electrical activity of the heart over a period of time using electrodes placed on the skin.
Etymology
Derived from the Greek words 'elektron' (amber, for electricity), 'kardia' (heart), and 'gramma' (writing or drawing), reflecting the recording of electrical heart signals.
In the news
The term is used to describe the diagnostic tool that unexpectedly identified an abnormal heart rhythm in a volunteer participating in a medical trial.
Southall man says clinical trial revealed hidden heart condition
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