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adit

[ad-it] /ˈæd ɪt/
noun
1.
an entrance or a passage.
2.
Also called entry. Mining. a nearly horizontal passage leading into a mine.
3.
an approach or access.
Origin
1595-1605
1595-1605; < Latin aditus an approach, equivalent to ad- ad- + -i- (stem of īre to go) + -tus suffix of v. action
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for adit
  • From the adit two incline raises were excavated to the surface.
  • The adit would be excavated back to competent material and a cement bulkhead would be constructed to seal off the entrance.
  • The gate on the lower adit is still in place and functioning, but the gate on the upper adit is in need of complete replacement.
  • The first, main adit appears to have been used as both a workshop and sleeping area.
British Dictionary definitions for adit

adit

/ˈædɪt/
noun
1.
an almost horizontal shaft into a mine, for access or drainage
Word Origin
C17: from Latin aditus an approach, from adīre, from ad- towards + īre to go
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for adit
n.

"entrance," c.1600, from Latin aditus "approach, entrance, a going to or drawing near," from past participle stem of adire "to approach," from ad- "to" (see ad-) + ire "to go," from PIE root *ei- "to go" (see ion).

Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Article for 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, or removing water from a mine.

Learn more about adit with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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