adit

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ad·it

 (ăd′ĭt)
n.
An almost horizontal entrance to a mine.

[Latin aditus, access, from past participle of adīre, to approach : ad-, ad- + īre, to go; see ei- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

adit

(ˈædɪt)
n
(Mining & Quarrying) an almost horizontal shaft into a mine, for access or drainage
[C17: from Latin aditus an approach, from adīre, from ad- towards + īre to go]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ad•it

(ˈæd ɪt)

n.
a nearly horizontal passage leading into a mine.
[1595–1605; < Latin aditus an approach]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.adit - a nearly horizontal passage from the surface into a mineadit - a nearly horizontal passage from the surface into a mine
mine - excavation in the earth from which ores and minerals are extracted
passage - a way through or along which someone or something may pass
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Gebir and the Gadites (or the "Adites" or "the people of Ad") are really the descendants of Gad (Ad), who in Landor's account built the city of Cadiz (a near eponym of the Phoenician name, Gades).