From Longman Dictionary of Contemporary Englishcathetercath‧e‧ter /ˈkæθɪtə $ -ər/ noun [countable] medical MHa thin tube that is put into your body to remove liquids —catheterize (also -ise British English) verb [transitive]
Examples from the Corpus
catheter• He was taken off the ventilator, although he still had the tracheostomy and a catheter for his urine.• Many of the birds are being hydrated with electrolytes via a catheter and kept warm on heating pads to treat hypothermia.• It will initially target the medical community, producing rubber gloves and catheters, he said.• After an overnight fast of at least 10 hours, an 18 gauge catheter was placed in an antecubital vein for blood sampling.• The first allegation was that a misplaced catheter gave misleading readings of oxygen pressure.• The tip of the catheter was positioned directly on the gestational sac.• Case 1-2 A patient with urinary retention is admitted to the hospital and a urethral catheter is placed.• If used, hydrochloric acid must be given slowly through a central venous catheter.Origin catheter (1600-1700) Late Latin Greek, from kathienai “to send down”, from kata- ( → CATACLYSM) + hienai “to send” 