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“cardiograph”
cardiograph (s) (noun, cardiographs (pl)
An instrument for recording the heart activities: Cardiographs are used when diagnosing heart conditions or disorders.
This entry is located in the following units:
cardio-, cardi-, card-
(page 4)
grapho-, graph-, -graph, -graphy, -grapher, -graphia
(page 13)