cat scan: meaning, definition, pronunciation and examples
C1Technical/Medical; also common in general educated discourse.
Quick answer
What does “cat scan” mean?
A medical imaging procedure that uses X-rays and computer processing to create detailed cross-sectional images of the body.
Audio
Pronunciation
Definition
Meaning and Definition
A medical imaging procedure that uses X-rays and computer processing to create detailed cross-sectional images of the body.
Often used to refer to the procedure itself, the machine used (CT scanner), or the resulting images. Can be used informally to mean a detailed examination or investigation of any complex system or structure.
Dialectal Variation
British vs American Usage
Differences
Both "CAT scan" and "CT scan" are used in both varieties, with "CT scan" being the dominant modern term in professional settings. There is no significant dialectal variation in the term itself.
Connotations
The term "CAT scan" may sound slightly dated or less technical to medical professionals but is perfectly understood by the general public.
Frequency
"CT scan" is more frequent in contemporary medical writing in both regions. "CAT scan" persists more in patient-facing materials and everyday speech.
Grammar
How to Use “cat scan” in a Sentence
The doctor ordered [OBJECT: a CAT scan] for the patient.The patient had to undergo [OBJECT: a CAT scan].The radiologist reviewed the [OBJECT: CAT scan] images.Vocabulary
Collocations
Examples
Examples of “cat scan” in a Sentence
verb
British English
- The patient was CAT-scanned immediately upon arrival at A&E.
- They decided to CAT-scan his abdomen.
American English
- The doctor wants to CAT-scan her head to rule out a hemorrhage.
- He was CAT-scanned as part of the trauma protocol.
adverb
British English
- This area cannot be visualized CAT-scan-wise without contrast.
adjective
British English
- The CAT-scan findings were inconclusive.
- We're waiting for the CAT-scan report.
American English
- The CAT-scan results came back normal.
- She reviewed the CAT-scan images with the resident.
Usage
Meaning in Context
Business
Rare. Could be used metaphorically: 'We need a CAT scan of our supply chain to find the bottlenecks.'
Academic
Common in medical, biological, and engineering research papers discussing imaging techniques.
Everyday
Common when discussing personal health, medical procedures, and hospital experiences.
Technical
The standard term is 'CT scan'. 'CAT scan' is considered a dated synonym in radiology and medical physics.
Vocabulary
Synonyms of “cat scan”
Vocabulary
Antonyms of “cat scan”
Watch out
Common Mistakes When Using “cat scan”
- Incorrectly capitalising as 'Cat Scan' (should be 'CAT scan' or 'CT scan').
- Using 'CAT scan' in a formal medical paper where 'CT scan' is expected.
- Misspelling as 'catscan' (should be two words or hyphenated: 'CAT-scan').
FAQ
Frequently Asked Questions
Computed Axial Tomography. 'Axial' refers to the original method of taking image 'slices' perpendicular to the long axis of the body.
No. A CAT/CT scan uses X-rays, while an MRI (Magnetic Resonance Imaging) uses strong magnetic fields and radio waves. They show different tissue properties and are used for different diagnostic purposes.
'CT scan' (Computed Tomography) is the modern, preferred technical term. 'CAT scan' is the original acronym, and while still understood, 'CT' is shorter and reflects that the imaging is no longer limited to the axial (head-to-toe) plane.
A single CT scan involves a higher dose of ionizing radiation than a standard X-ray, but the diagnostic benefit usually outweighs the small, calculated risk. Doctors order them when medically necessary, and modern machines use the lowest dose possible.
A medical imaging procedure that uses X-rays and computer processing to create detailed cross-sectional images of the body.
Cat scan is usually technical/medical; also common in general educated discourse. in register.
Cat scan: in British English it is pronounced /ˌsiː eɪ ˈtiː skæn/ (for 'CT scan'); /ˌkæt skæn/ (for 'cat scan'), and in American English it is pronounced /ˌsi ˈti skæn/ (for 'CT scan'); /ˌkæt skæn/ (for 'cat scan'). Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Give it the full CAT scan (informal): to examine something in extreme detail.”
Learning
Memory Aids
Mnemonic
Think of a curious CAT looking in slices through a box. A CAT scan takes 'slices' (cross-sections) through your body to see inside.
Conceptual Metaphor
MEDICAL IMAGING IS SEEING THROUGH; THE BODY IS A LAYERED OBJECT THAT CAN BE SLICED.
Practice
Quiz
What is the most accurate modern synonym for 'CAT scan' in a clinical setting?