Choose the correct word from the given options as one word substitution for the given phrase:
An instrument that records heart's action.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Cardiograph
| Word | Meaning | Example |
|---|---|---|
| (1) Cardiograph (answer) | an instrument that records the movements of the heart | The nurse connected the patient to a cardiograph. |
| (2) Cardiogram | the record, the graph, produced by a cardiograph (not the instrument: -graph is the instrument, -gram the record) | The doctor studied the cardiogram carefully. |
| (3) Cardiac | an adjective meaning "of the heart" (it is not the name of an instrument) | He was taken to the cardiac ward. |
| (4) Cartography | the science or art of making maps (it has nothing to do with the heart) | Satellites have changed modern cartography. |