verb (used with object), cath·e·ter·ized, cath·e·ter·iz·ing.
- to introduce a catheter into.
verb
- (tr) to insert a catheter into
v.
- To introduce a catheter into.
Insertion of a catheter into the body. Common types of this procedure include cardiac catheterization, in which a catheter is inserted into the heart through a vein in the arm to diagnose heart disease, and urinary bladder catheterization, in which a catheter is inserted into the urethra to permit urine to flow out of the urinary bladder.