- 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.
Origin of encephalogram
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
- short for electroencephalogram
- An x-ray picture of the brain taken by encephalography.
- An electroencephalogram.