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CAT scanner

[kat]
noun
  1. a specialized x-ray instrument that displays computerized cross-sectional images of the body, providing a noninvasive means of visualizing the brain, lungs, liver, spleen, and other soft tissue.
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Also called CT scanner.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cat scanner

CAT scanner

noun
  1. former name for CT scanner
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Word Origin

C20: (C) omputerized (A) xial (T) omography
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cat scanner in Medicine

CAT scanner

n.
  1. A device that uses computerized axial tomography to produce cross-sectional views of an internal body structure.CT scanner
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.