Search Result for "echocardiography": 
Wordnet 3.0

NOUN (1)

1. a noninvasive diagnostic procedure that uses ultrasound to study to structure and motions of the heart; 



WordNet (r) 3.0 (2006):

echocardiography
    n 1: a noninvasive diagnostic procedure that uses ultrasound to
         study to structure and motions of the heart