examination of the heart using ultrasound techniques
echocardiography in American English
(ˌɛkoʊˌkɑrdiˈɑgrəfi)
nounWord forms: pluralˌechoˌcardiˈographies
a technique for examining the internal structure of the heart, using reflections from high-frequency sound waves to form a picture or display (ˌechoˈcardioˌgram)