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
WordReference Random House Unabridged Dictionary of American English © 2026
en•ceph•a•lo•gram
(en sef′ə lə gram′),USA pronunciation n. [Med.]
- Medicinean 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.
- encephalo- + -gram1 1925–30
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'encephalogram' also found in these entries (note: many are not synonyms or translations):