CAT scan - definition and synonyms

noun [countable] medical 

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/ˈkæt ˌskæn/
singularCAT scan
pluralCAT scans

or CT scan 

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/ˌsiː ˈtiː ˌskæn/

  1. a medical test in which computer technology is used for producing an image of the inside of a part of your body, or the image that is produced in this way