VS.

Adit vs. Tunnel

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Aditnoun

A horizontal or nearly horizontal passage from the surface into a mine, as contrasted with a shaft or vertical entry passage. An adit may be used for ventilation, haulage, drainage, or other purposes.

Tunnelnoun

An underground or underwater passage.

Aditnoun

An entrance or passage. Specifically: The nearly horizontal opening by which a mine is entered, or by which water and ores are carried away; - called also drift and tunnel.

Tunnelnoun

A passage through or under some obstacle.

Aditnoun

Admission; approach; access.

‘Yourself and yours shall haveFree adit.’;

Tunnelnoun

A hole in the ground made by an animal, a burrow.

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Aditnoun

a nearly horizontal passage from the surface into a mine

Tunnelnoun

A wrapper for a protocol that cannot otherwise be used because it is unsupported, blocked, or insecure.

Adit

An adit (from Latin aditus, entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adits are also used to explore for mineral veins.

Tunnelnoun

A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles, or other vessels; a funnel.

Tunnelnoun

The opening of a chimney for the passage of smoke; a flue.

Tunnelnoun

(mining) A level passage driven across the measures, or at right angles to veins which it is desired to reach; distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel.

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Tunnelverb

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

Tunnelverb

(intransitive) To dig a tunnel.

Tunnelverb

To transmit something through a tunnel (wrapper for insecure or unsupported protocol).

Tunnelverb

To insert a catheter into a vein to allow long-term use.

Tunnelverb

(physics) To undergo the quantum-mechanical phenomenon where a particle penetrates through a barrier that it classically cannot surmount.

Tunnelnoun

A vessel with a broad mouth at one end, and a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles, or other vessels; a funnel.

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Tunnelnoun

The opening of a chimney for the passage of smoke; a flue; a funnel.

‘And one great chimney, whose long tunnel thenceThe smoke forth threw.’;

Tunnelnoun

An artificial passage or archway for conducting canals, roads, or railroads under elevated ground, for the formation of roads under rivers or canals, and the construction of sewers, drains, and the like.

Tunnelnoun

A level passage driven across the measures, or at right angles to veins which it is desired to reach; - distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel.

Tunnelverb

To form into a tunnel, or funnel, or to form like a tunnel; as, to tunnel fibrous plants into nests.

Tunnelverb

To catch in a tunnel net.

Tunnelverb

To make an opening, or a passageway, through or under; as, to tunnel a mountain; to tunnel a river.

Tunnelverb

To make a tunnel; as, to tunnel under a river.

Tunnelnoun

a passageway through or under something, usually underground (especially one for trains or cars);

‘the tunnel reduced congestion at that intersection’;

Tunnelnoun

a hole in the ground made by an animal for shelter

Tunnelverb

move through by or as by digging;

‘burrow through the forest’;

Tunnelverb

force a way through

Tunnelnoun

an artificial underground passage, especially one built through a hill or under a building, road, or river

‘the Mersey tunnel’; ‘a road tunnel through the Pyrenees’; ‘the tunnel mouth’;

Tunnelnoun

an underground passage dug by a burrowing animal.

Tunnelnoun

a passage in a sports stadium by which players enter or leave the field

‘he jogged off the field and into the tunnel’;

Tunnelnoun

short for wind tunnel

Tunnelnoun

a long, half-cylindrical enclosure used to protect plants, made of clear plastic stretched over hoops

‘cover plants in rows with a cloche tunnel’;

Tunnelverb

dig or force a passage underground or through something

‘the insect tunnels its way out of the plant’; ‘he tunnelled under the fence’;

Tunnelverb

(of a particle) pass through a potential barrier.

Tunnel

A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.

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Tunnel Illustrations

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