cath·e·ter 
(kăthĭ-tər)
(kăthĭ-tər)n.
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.
[Late Latin, from Greek kathetēr, from kathīenai, kathe-, to send down : kat-, kata-, cata- + hīenai, to send; see yē- in the Appendix of Indo-European roots.]
- statesmanly
- statesmanship
- states' righter
- states' rights
- States' Rights Party
- stateswoman
- statewide
- static
- statical
- statically
- static dump
- statice
- static electricity
- static friction
- staticky
- static memory
- static pressure
- static RAM
- static routine
- statics
- static tube
- statin
- station
- stationary
- stationary bicycle