hatchway

noun

1. A means of passing through a wall or floor, having a hatch (especially on a ship); a doorway with a hatch rather than a door.

   “Up through the great hatchways rimmed with racks of heavy shot, the watch below came pouring […]”

   “Full-depth, hinged doors are provided on each side of the engine and generator housing, and hatchways are fitted in the roof over the engine.”