a nearly horizontal passage from the surface into a mine
A horizontal or nearly horizontal passage from the surface into a mine as contrasted to a shaft which is a vertical entry passage. An adit may be used for ventilation, haulage, drainage, or other purposes.
Origin: From aditus ‘entrance, access’, from ad + itus.
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
admission; approach; access
Origin: [L. aditus, fr. adire, aditum, to go to; ad + ire to go.]
An adit 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 possible level. Adits are also used to explore for mineral veins.
Chambers 20th Century Dictionary
ad′it, n. an opening or passage, esp. into a mine. [L. aditus—ad, to, īre, itum, to go.]
What does ADIT stand for? -- Explore the various meanings for the ADIT acronym on the Abbreviations.com website.
The numerical value of ADIT in Chaldean Numerology is: 1
The numerical value of ADIT in Pythagorean Numerology is: 7
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