(transitive) To make a tunnel through or under something; to burrow. / (intransitive) To dig a tunnel.

One who makes tunnels. / A device for making tunnels.

plural of tunneler

plural of tunneller

(US) simple past tense and past participle of tunnel

The act of burrowing a tunnel. / The practice of exploring tunnel. / (physics) The quantum mechanical passing of a particle through an energy barrier.

present participle of tunnel

A long passage under the ground or through a hill.

(quantum mechanics) Any of several quantum mechanical effects in which a particle disobeys the laws of classical mechanics.

(physics) The transmission of light through apertures of dimension smaller than the wavelength of the light by quantum tunnelling