noun
EKG
noun
1
An electrocardiogram — a test that records the electrical activity of the heart; also written ECG.
"The doctor ordered an EKG to check for irregular heartbeats."
How to Use EKG
Learner’s notesIn plain EnglishA heart-monitoring test, same thing as an ECG.
UK vs US
EKG is more common in American English; ECG is standard in British English.
Easily confused with
ecg
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The doctor ordered an _____ to check for irregular heartbeats.
Etymology
From German Elektrokardiogramm, still used in English as an alternative to the more common abbreviation ECG.