A'dit. n.s. [aditus, Lat.] A passage for the conveyance of water under ground; a passage under ground in general; a term among the minemen.
For conveying away the water, they stand in aid of sundry devices; as, adits, pumps, and wheels, driven by a stream, and interchangeably filling and emptying two buckets. Carew's Surv.
The delfs would be so flown with waters (it being impossible to make any adits or soughs to drain them) that no gins or machines could suffice to lay and keep them dry. Ray on the Creat.