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Definition of catheter

catheter

/ˈkæθ.ə.tɚ/
cath · e · ter
Plural:catheters
•
Adjective:catheteral
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catheter Lexical Profile

catheter Game Scores & Validity

• noun

1

A flexible tubular medical device inserted into a body cavity, duct, or vessel to drain fluids, administer medications, or allow access by surgical instruments.

Example

"The nurse carefully inserted a urinary catheter to monitor the patient's fluid output after surgery."

Synonyms
View all synonyms for catheter

• Nearby Words

catharsis
cathartic
cathedral
catheter
cathode
catholic
catholicism

Word Origin & Etymology

Borrowed in the late 16th century from Late Latin catheter, from Ancient Greek kathetēr ('a surgical plug or tube'), derived from kathienai ('to send down or let down'), from kata ('down') and hienai ('to send').

Cite this Entry

Wordmom. (2026). Definition of Catheter. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/catheter
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