tunnel /tunˈl/

1. A passage cut underground
2. Any tubular passage
3. An animal's burrow, in earth, wood, etc
4. A tunnel net
5. A flue, chimney
6. (with cap) the tunnel under the English Channel connecting England and France
7. See also snake

1. To make a passage or passages through
2. To hollow out
3. To catch in a tunnel net

1. To make a tunnel
2. To pass through, or as if through, a tunnel

tunnˈeller or (US) tunnˈeler noun

tunnˈelling noun and adjective

tunnel diode noun (electronics)

A junction diode, used as a low noise amplifier, oscillator or very low power microwave, in which electrons bypass the potential energy barrier by a phenomenon known in wave mechanics as tunnˈelling

tunnel net noun

A funnel-shaped net

tunnel of love noun

A fairground ride consisting of a trip through a darkened tunnel by boat or train, used traditionally by courting couples

tunnel vault same as barrel vault (see under barrel).

tunnel vision noun

1. A medical condition in which one is unable to see objects other than those straight ahead
2. Single-minded concentration on one's own pursuits or viewpoints to the total exclusion of those of others

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