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PET scanner

[ pet-skan-er ]
/ ˈpɛt ˌskæn ər /
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noun Computers, Medicine/Medical.
a tomographic imaging device that yields visual information (a PET scan) about the ongoing activity of the brain: positron-emitting isotopes, incorporated into biologically important compounds, are injected intravenously or administered by inhalation, and the resultant gamma radiation is sensed by detectors and converted into computer-generated images of blood flow, oxygen utilization, glucose uptake, etc.
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Origin of PET scanner

First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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