tunnel.html - n. & v.
--n.

1 an artificial underground passage through a hill or under a road or river etc., esp. for a railway or road to pass through, or in a mine.
2 an underground passage dug by a burrowing animal.
3 a prolonged period of difficulty or suffering (esp. in metaphors, e.g. the end of the tunnel).
4 a tube containing a propeller shaft etc.

--v.

(tunnelled, tunnelling; US tunneled, tunneling)
1 intr. (foll. by through, into, etc.) make a tunnel through (a hill etc.).
2 tr. make (one's way) by tunnelling.
3 intr. Physics pass through a potential barrier.

tunnel diode Electronics a two-terminal semiconductor diode using tunnelling electrons to perform high-speed switching operations. tunnel-kiln a kiln in which ceramic ware is carried on trucks along a continuously-heated passage. tunnel-net a fishing-net wide at the mouth and narrow at the other end. tunnel vision 1 vision that is defective in not adequately including objects away from the centre of the field of view.
2 colloq. inability to grasp the wider implications of a situation.

tunneller n. [ME f. OF tonel dimin. of tonne TUN]

tunnel.html - n. & v.
--n.

1 an artificial underground passage through a hill or under a road or river etc., esp. for a railway or road to pass through, or in a mine.
2 an underground passage dug by a burrowing animal.
3 a prolonged period of difficulty or suffering (esp. in metaphors, e.g. the end of the tunnel).
4 a tube containing a propeller shaft etc.

--v.

(tunnelled, tunnelling; US tunneled, tunneling)
1 intr. (foll. by through, into, etc.) make a tunnel through (a hill etc.).
2 tr. make (one's way) by tunnelling.
3 intr. Physics pass through a potential barrier.

tunnel diode Electronics a two-terminal semiconductor diode using tunnelling electrons to perform high-speed switching operations. tunnel-kiln a kiln in which ceramic ware is carried on trucks along a continuously-heated passage. tunnel-net a fishing-net wide at the mouth and narrow at the other end. tunnel vision 1 vision that is defective in not adequately including objects away from the centre of the field of view.
2 colloq. inability to grasp the wider implications of a situation.

tunneller n. [ME f. OF tonel dimin. of tonne TUN]

tunnel.html - n. & v.
--n.

1 an artificial underground passage through a hill or under a road or river etc., esp. for a railway or road to pass through, or in a mine.
2 an underground passage dug by a burrowing animal.
3 a prolonged period of difficulty or suffering (esp. in metaphors, e.g. the end of the tunnel).
4 a tube containing a propeller shaft etc.

--v.

(tunnelled, tunnelling; US tunneled, tunneling)
1 intr. (foll. by through, into, etc.) make a tunnel through (a hill etc.).
2 tr. make (one's way) by tunnelling.
3 intr. Physics pass through a potential barrier.

tunnel diode Electronics a two-terminal semiconductor diode using tunnelling electrons to perform high-speed switching operations. tunnel-kiln a kiln in which ceramic ware is carried on trucks along a continuously-heated passage. tunnel-net a fishing-net wide at the mouth and narrow at the other end. tunnel vision 1 vision that is defective in not adequately including objects away from the centre of the field of view.
2 colloq. inability to grasp the wider implications of a situation.

tunneller n. [ME f. OF tonel dimin. of tonne TUN]

tunnel.html - n.
(pl. same or -ies) = TUNA(1). [F thon f. Prov. ton, f. L thunnus f. Gk thunnos]

tunnel.html - See: CALL THE TUNE, CHANGE ONE'S TUNE, IN TUNE, SING A DIFFERENT TUNE or WHISTLE A DIFFERENT TUNE also SING A NEW TUNE, TO THE TUNE OF.

tunnel.html - To adjust a radio or television set to pick up a certain station. * /Bob tuned in his portable radio to a record show./ * /Tom tuned in to Channel 11 to hear the news./