encephalogram

[ en-sef-uh-luh-gram ]

noun

, Medicine/Medical.

1. an x-ray of the brain, usually involving replacement of some cerebrospinal fluid by air or other gas that circulates to the brain's ventricular spaces and acts as a contrast medium.

encephalogram

/ ɛnˈsɛfələˌɡræm /

noun

1. an X-ray photograph of the brain, esp one (a pneumoencephalogram ) taken after replacing some of the cerebrospinal fluid with air or oxygen so that the brain cavities show clearly
2. See electroencephalogram
   short for electroencephalogram

Word History and Origins

Origin of encephalogram¹

First recorded in 1925–30; encephalo- + -gram ¹

Related Words

• radioactivity
• Roentgen rays
• Röntgen rays