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Dictionary

tun'nel effect"

Physics.a quantum-mechanical process by which a particle can pass through a potential energy barrier that is higher than the energy of the particle: first postulated to explain the escape of alpha particles from atomic nuclei. Also called tun'nel•ing.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

tunnel disease

tunnel of love

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