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
Endovascular coiling is a procedure in which a catheter is threaded through an artery from the groin into the brain to reach an aneurysm.
—
Ashley Hume, FOXNews.com, 15 Oct. 2025
Researchers have long relied on small, flexible catheters to minimize damage to delicate brain tissue, but these typically release medication from just one or two points, restricting their effectiveness.
—Neetika Walter, Interesting Engineering, 14 Oct. 2025
People who are taking long courses of certain antibiotics, use medical devices such as respirators and catheters, and those with weakened immune systems are at the highest risk of contracting a CRE infection, said the CDC.
—Mary Walrath-Holdridge, USA Today, 11 Oct. 2025
Quality metrics include long-stay and short-stay data like percentages of hospitalizations, vaccinations, falls, residents who need help with daily activities and catheter insertions and pressure ulcers.
—Lauren Giella, MSNBC Newsweek, 30 Sep. 2025
See All Example Sentences for catheter
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Ashley Hume, FOXNews.com, 15 Oct. 2025
Researchers have long relied on small, flexible catheters to minimize damage to delicate brain tissue, but these typically release medication from just one or two points, restricting their effectiveness.
—Neetika Walter, Interesting Engineering, 14 Oct. 2025
People who are taking long courses of certain antibiotics, use medical devices such as respirators and catheters, and those with weakened immune systems are at the highest risk of contracting a CRE infection, said the CDC.
—Mary Walrath-Holdridge, USA Today, 11 Oct. 2025
Quality metrics include long-stay and short-stay data like percentages of hospitalizations, vaccinations, falls, residents who need help with daily activities and catheter insertions and pressure ulcers.
—Lauren Giella, MSNBC Newsweek, 30 Sep. 2025
See All Example Sentences for catheter
Cite this Entry
“Catheter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catheter. Accessed 21 Oct. 2025.
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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