a slender, hollow tube, as of metal or rubber, inserted into a body passage, vessel, or cavity for passing fluids, making examinations, etc., esp. one for draining urine from the bladder
Origin of catheterLate Latin from Classical Greek kathet?r from kathienai, to let down, thrust in from kata-, down + hienai, to send: see jet
A hollow flexible tube for insertion into a body cavity, duct, or vessel to allow the passage of fluids or distend a passageway. Its uses include the drainage of urine from the bladder through the urethra or insertion through a blood vessel into the heart for diagnostic purposes.
Origin of catheterLate Latin from Greek kathetēr from kathīenai kathe- to send down kat-, kata- cata- hīenai to send ; see yē- in Indo-European roots.
From French cathéter.