[ek-oh-en-sef-uh-luh-graf, -grahf] 
| a device that employs reflected ultrasonic waves to examine the position of brain structures. |
[ek-oh-en-sef-uh-luh-graf-ik] , ech⋅o⋅en⋅ceph⋅a⋅lo⋅graph⋅i⋅cal, adjective [ek-oh-en-sef-uh-log-ruh-fee] , noun 
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