catheter
noun
cath·e·ter ˈka-thə-tər 
ˈkath-tər
: a tubular medical device for insertion into canals, vessels, passageways, or body cavities usually to permit injection or withdrawal of fluids or to keep a passage open
compare balloon catheter
Examples of catheter in a Sentence
Recent Examples on the Web
Based in Malaysia, Karex produces condoms, personal lubricants, gloves, medical catheters and probe covers. —
David Goldman, CNN Money, 21 Apr. 2026 One type of home dialysis requires surgery to get a catheter placed in the abdomen and up to 15 days of training. —Arielle Zionts, NPR, 15 Apr. 2026 Like, he was attached to a catheter and trying to like, f---in' walk out and go out and train for Lake Placid. —Emlyn Travis, Entertainment Weekly, 13 Apr. 2026 Medication can help but the main treatment is ablation, when doctors thread catheters to the heart to burn misfiring tissue. —ABC News, 1 Apr. 2026 See All Example Sentences for catheter
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
David Goldman, CNN Money, 21 Apr. 2026 One type of home dialysis requires surgery to get a catheter placed in the abdomen and up to 15 days of training. —Arielle Zionts, NPR, 15 Apr. 2026 Like, he was attached to a catheter and trying to like, f---in' walk out and go out and train for Lake Placid. —Emlyn Travis, Entertainment Weekly, 13 Apr. 2026 Medication can help but the main treatment is ablation, when doctors thread catheters to the heart to burn misfiring tissue. —ABC News, 1 Apr. 2026 See All Example Sentences for catheter
Cite this Entry
“Catheter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/catheter. Accessed 29 Apr. 2026.
Copy CitationMedical Definition
catheter
noun
cath·e·ter ˈkath-ət-ər, ˈkath-tər
: a tubular medical device for insertion into canals, vessels, passageways, or body cavities for diagnostic or therapeutic purposes (as to permit injection or withdrawal of fluids or to keep a passage open)
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