A horizontal or nearly horizontal passage from area into a mine as compared to a shaft that will be a vertical entry passageway. An adit can be utilized for air flow, haulage, drainage, or any other functions.
An entrance or passage. Specifically: The nearly horizontal orifice in which a mine is registered, or wherein water and ores are overly enthusiastic; -- labeled as in addition drift and tunnel.
Admission; method; accessibility.
An entrance or a passage; particularly, in mining, a nearly horizontal excavation, or drift (which see), especially accustomed carry out from inside toward area water which either makes the workings from above or is moved up from here.
Milit., a passage under ground wherein miners method the part they plan to drain. Wilhelm, Mil. Diet Plan. Admission; accessibility; method.
a nearly horizontal passageway from surface into a mine