echocardiogram
Word family
- echocardiographynounC1
- echocardiographnounC2
- echocardiographicadjectiveC2
Synonym discussion
Sense: noun/1
An echocardiogram is the actual test a patient undergoes. Echocardiography is the broader technique or medical field — a doctor may specialize in echocardiography without performing a single echocardiogram on a given day. Cardiac ultrasound is a more general term that includes all ultrasound uses on the heart (including fetal heart checks), while an echocardiogram specifically diagnoses structure and function. EKG (or ECG) is a completely different test that measures the heart's electrical activity using electrodes on the skin, not sound waves. Sonogram is a general term for any ultrasound image (of a fetus, liver, etc.), not specifically the heart. In a hospital, a doctor might say 'I ordered an echo' (echocardiogram), but that same doctor would say 'the sonogram shows the baby' — never 'the echocardiogram shows the baby.'
Common collocations
Phrases
- echocardiogram results
- echocardiogram report
Etymology
A modern medical term formed in the mid-20th century from three Greek roots: echo (returning sound), kardia (heart), and gramma (written record or drawing). The word was created after the invention of ultrasound technology that could bounce sound waves off the heart and record the returning signals as images.
First known use
1967
1967, in the meaning defined above