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Medical Term:

catheter

Pronunciation: kath′ĕ-ter

Definition:

  1. A tubular instrument to allow passage of fluid from or into a body cavity or blood vessel.
  2. Generally, a catheter designed to be passed through the urethra into the bladder to drain it of urine.

[G. kathetēr, fr. kathiēmi, to send down]

See Also: line5

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