n.

a passageway through or under something, usually underground (especially one for trains or cars)

"the tunnel reduced congestion at that intersection"

a hole in the ground made by an animal for shelter

同義詞：burrow

Outcome of tunneled hemodialysis catheters placed by radiologists.
Locking of tunneled hemodialysis catheters with gentamicin and heparin.
Bacteremia associated with tunneled, cuffed hemodialysis catheters.
The tunneled supraclavicular island flap: an optimized technique for head and neck reconstruction.
Bacteremia associated with tunneled dialysis catheters: Comparison of two treatment strategies
Management of bacteremia associated with tunneled-cuffed hemodialysis catheters.
Outcome of tunneled hemodialysis catheters placed via the right internal jugular vein by interventional radiologists
Candidemia in cancer patients: impact of early removal of non-tunneled central venous catheters on outcome.
Prevention of bacteremia attributed to luminal colonization of tunneled central venous catheters with vancomycin-susceptible organisms
A randomized trial of minidose warfarin for the prevention of late malfunction in tunneled, cuffed hemodialysis catheters.