ADIT
adit
(noun) a nearly horizontal passage from the surface into a mine
Source: WordNet® 3.1
Etymology
Noun
adit (plural adits)
A horizontal or nearly horizontal passage from the surface into a mine, as contrasted with a shaft or vertical entry passage. An adit may be used for ventilation, haulage, drainage, or other purposes.
Anagrams
• DITA, dati
Source: Wiktionary
Ad"it, n. Etym: [L. aditus, fr. adire, , 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 tunnel.
2. Admission; approach; access. [R.]
Yourself and yours shall have Free adit. Tennyson.
Source: Webster’s Unabridged Dictionary 1913 Edition