a tomographic imaging device that yields visual information 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.
- PET scanning
noun 1. the action or process of using a PET scanner to obtain an image.
character /pet’skee/ PET ASCII. The variation (many would say perversion) of the ASCII character set used by the Commodore Business Machines’ PET series of personal computers and the later Commodore 64, Commodore 16, and Commodore 128 computers. The PETSCII set used left-arrow and up-arrow (as in old-style ASCII) instead of underscore and caret, placed the […]
noun 1. the act of caring for a pet in its own home while the owner is away.
[pet] /pɛt/ noun 1. any domesticated or tamed animal that is kept as a companion and cared for affectionately. 2. a person especially cherished or indulged; favorite: He was the teacher’s pet. 3. a thing particularly cherished. adjective 4. kept or treated as a pet: a pet lamb. 5. especially cherished or indulged, as a […]