What is the meaning of Tunnelling?

of Tunnel.
Webster's Revised Unabridged Dictionary
5
 
|15 years ago|535 views|share |citing 
APAWebster's. (2011). tunnelling. Retrieved September 20, 2026, from http://smartdefine.org/tunnelling/definitions/2075494
ChicagoWebster's. 2011. "tunnelling" http://smartdefine.org/tunnelling/definitions/2075494 (accessed September 20, 2026).
HarvardWebster's 2011, tunnelling, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/tunnelling/definitions/2075494>.
MLAWebster's. "tunnelling" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/tunnelling/definitions/2075494>