Definition of Tunnel. Meaning of Tunnel. Synonyms of Tunnel
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Definition of Tunnel
tunnelAdit Ad"it, n. [L. aditus, fr. adire, ?aitum, to go to; ad +
ire to go.]
1. 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
2. Admission; approach; access. [R.]
Yourself and yours shall have Free adit. --Tennyson. TunnelTunnel Tun"nel, n. . [F. tonnelle a semicircular, wagon-headed
vault, a tunnel net, an arbor, OF. also tonnel; dim. of tonne
a tun; -- so named from its resemblance to a tun in shape.
1. 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.
2. The opening of a chimney for the passage of smoke; a flue;
And one great chimney, whose long tunnel thence The
smoke forth threw. --Spenser.
3. An artificial passage or archway for conducting canals or
railroads under elevated ground, for the formation of
roads under rivers or canals, and the construction of
sewers, drains, and the like.
4. (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.
Tunnel head (Metal.), the top of a smelting furnace where
the materials are put in.
Tunnel kiln, a limekiln in which coal is burned, as
distinguished from a flame kiln, in which wood or peat is
Tunnel net, a net with a wide mouth at one end and narrow
at the other.
Tunnel pit, Tunnel shaft, a pit or shaft sunk from the
top of the ground to the level of a tunnel, for drawing up
the earth and stones, for ventilation, lighting, and the
like. TunnelTunnel Tun"nel, v. t. [imp. & p. p. Tunneledor Tunnelled;
p. pr. & vb. n. Tunneling or Tunnelling.]
1. To form into a tunnel, or funnel, or to form like a
tunnel; as, to tunnel fibrous plants into nests. --Derham.
2. To catch in a tunnel net.
3. To make an opening, or a passageway, through or under; as,
to tunnel a mountain; to tunnel a river.
Meaning of Tunnel from wikipedia
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