What is the definition of a buttress in architectural terms?

The definition of a buttress in architectural terms refers specifically to a support structure that is typically made of materials such as stone or brick. Buttresses are designed to provide stability to walls, allowing them to withstand the lateral forces that can be exerted, especially in structures with tall or heavy walls. This supportive function is essential in various types of architecture, particularly in Gothic cathedrals, where flying buttresses enable the construction of large windows and vaulted ceilings while ensuring the walls remain structurally sound.

Understanding this definition emphasizes the practical role a buttress plays in architectural design, distinguishing it from decorative elements, building materials, or roof styles, which do not serve a support function.