n. A space or opening for ascending and descending by a ladder; specifically, in mining, a shaft arranged with a system of ladders by winch the miners have access to the part of the mine in which their work is carried on.
Word Usage
"Instead he went up onto the roof by way of the steep ladderway used by the workmen who fixed leaks, removed the nests of birds and wasps, and washed the skylights and the windows in the attic cupolas."