catheter
UK: ˈkæθɪtə | US: ˈkæθɪtər
n. a thin tube inserted into a body cavity, duct, or vessel to allow drainage, injection of fluids, or access for surgical instruments.
catheter = cathe<down, send> + ter<noun suffix>
- cathe (from Greek kathienai, meaning "to send down" or "let down")
- ter (noun-forming suffix, often indicating an instrument or agent)
Etymology Origin:
The word catheter traces back to Greek kathienai ("to send down"), reflecting its function as a device "sent down" into the body. The suffix -ter denotes an instrument, aligning with its medical use. Over time, the term evolved through Latin (catheter) into English, retaining its core meaning of a tube for fluid management.
The doctor inserted a catheter to drain the patient’s bladder.
Sterile technique is essential when handling a urinary catheter.
The cardiac catheter allowed precise measurement of blood pressure.
She experienced discomfort after the catheter was removed.
Modern catheters are designed to minimize infection risks.