Which term defines the side of a building that faces the prevailing winds?

The term that defines the side of a building that faces the prevailing winds is "windward." This side is crucial in architectural design as it significantly influences how a building interacts with its environment, particularly regarding airflow, ventilation, and potential weather impacts.

Understanding the windward side is essential for architects and planners because buildings positioned in relation to prevailing winds can optimize natural ventilation, enhance energy efficiency, and improve comfort levels for occupants. On the windward side, the design may also consider features like overhangs or screens to deflect harsh winds while capturing breezes for cooling.

The other terms provided do not accurately describe the side of a building facing the prevailing winds. The leeward side refers to the side sheltered from the wind, where the effects of the wind are minimized. While both sides of a building have their importance in the overall architectural response to wind dynamics, the designation of "windward" specifically focuses on the side that directly encounters the forces of the wind.