1. Gap excavated between a basement-wall of a building (lower than the floor-level) and the adjacent soil to prevent water-penetration and allow light and air to enter.
2. Space between a retaining-wall and the wall of a basement commencing at least as low as the foundations, drained and ventilated to prevent moisture seeping through into the building.
"dry area." A Dictionary of Architecture and Landscape Architecture. . Encyclopedia.com. (February 17, 2019). https://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/dry-area
"dry area." A Dictionary of Architecture and Landscape Architecture. . Retrieved February 17, 2019 from Encyclopedia.com: https://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/dry-area