Word Study
cardiogram
CIDE DICTIONARY
cardiogram, n. [Gr. kardi`a heart + -gram.].
Any instrumental record made of heart activity, especially the curve or tracing made by a cardiograph. Sometimes used synonymously with electrocardiogram . [Webster 1913 Suppl.]
OXFORD DICTIONARY
cardiogram, n. a record of muscle activity within the heart, made by a cardiograph.
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