|the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).|
|an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.|
echocardiogram ech·o·car·di·o·gram (ěk'ō-kär'dē-ə-grām')
A visual record produced by echocardiography.
|echocardiogram (ěk'ō-kär'dē-ə-grām') Pronunciation Key
An ultrasound image of the heart that demonstrates the size, motion, and composition of cardiac structures and is used to diagnose various abnormalities of the heart, including valvular dysfunction, abnormal chamber size, congenital heart disease, and cardiomyopathy.