
1) Access 2) Access for a collier 3) Access for a miner 4) Access on the Mesabi Range 5) Access to the Comstock Lode 6) An approach or access 7) An entrance or a passage 8) Approach to a mine 9) Collier entrance 10) Colliery approach 11) Colliery entrance 12) Colliery entry 13) Colliery opening 14) Colliery passage
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https://www.crosswordclues.com/clue/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. ==Construction== Adits are driven into the side of a hill or m...
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http://en.wikipedia.org/wiki/Adit

opening or passage into a mine
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http://phrontistery.info/a.html

• (n.) 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. • (n.) Admission; approach; access.
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http://thinkexist.com/dictionary/meaning/adit/

a horizontal or near-horizontal passage driven from the Earth`s surface into the side of a ridge or mountain for the purpose of working, ventilating, ... [3 related articles]
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http://www.britannica.com/eb/a-z/a/19

A nearly horizontal passage from the surface by which a mine is entered and dewatered. A blind horizontal opening into a mountain, with only one entrance.
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http://www.coaleducation.org/glossary.htm

Horizontal entrance to a mine, slightly inclined to allow drainage.
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http://www.encyclo.co.uk/local/20495

A tunnel designed to extract materials, such as minerals or coal, from underground, or to drain existing mines by sloping slightly upwards from the entrance. Adits are therefore self-draining.
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http://www.encyclo.co.uk/local/20766
Ad'it noun [ Latin
aditus , from
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 and
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http://www.encyclo.co.uk/webster/A/29

A nearly horizontal passage driven from the surface to the mine workings.
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http://www.juniorminers.com/glossary.html

An entrance to a mine, generally a horizontal tunnel.
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http://www.legendsofamerica.com/

Horizontal access shaft to a deposit inside a mountain.
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http://www.metalbulletin.com/Glossary.html

An adit is a more or less horizontal opening, giving access to the shaft of a mine. It is made to slope gradually from the farthest point in the interior to the mouth, and by means of it the principal drainage is usually carried on.
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http://www.probertencyclopaedia.com/browse/AA.HTM

A nearly horizontal passage from the surface by which a mine is entered and dewatered. A blind horizontal opening into a mountain, with only one entrance.
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http://www.rocksandminerals.com/glossary.htm

[
n] - a nearly horizontal passage from the surface into a mine
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http://www.webdictionary.co.uk/definition.php?query=adit
noun a nearly horizontal passage from the surface into a mine
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https://www.encyclo.co.uk/local/20974

a horizontal or nearly horizontal underground passage coming to the surface at one end of a mine.
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https://www.encyclo.co.uk/local/22701

An entrance to a mine that is essentially horizontal. This is commonly called a tunnel, although strictly a tunnel is open at both ends.
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https://www.encyclo.co.uk/local/22703

An opening driven horizontally into the side of a mountain or hill for providing access to a mineral deposit.
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https://www.encyclo.co.uk/local/22734

an entrance or a passage. · Also calleda nearly horizontal passage leading into a mine. · an approach or access.
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https://www.infoplease.com/dictionary/adit
No exact match found.