PET scan

noun

ˈpet-

: a sectional view of the body constructed by positron-emission tomography

PET scanner noun

PET scanning noun

Word History

First Known Use

1980, in the meaning defined above

Time Traveler

The first known use of PET scan was in 1980

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Browse Nearby Words

pe-tsai

PET scan

pettable

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Cite this Entry

Style

“PET scan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/PET%20scan. Accessed 20 Apr. 2025.

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Medical Definition

PET scan

noun

ˈpet-

: a sectional view of the body constructed by positron-emission tomography

PET scanning noun

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