What is definition of buttressing?

Buttressing refers to adding support or reinforcement to a structure or material to make it stronger. In construction, buttressing is accomplished through the use of additional structural supports, such as beams, braces, or walls, to transfer weight and resist lateral forces. The technique is commonly used in buildings, such as cathedrals, where tall, thin walls need additional support to prevent them from collapsing under wind or other external forces. It can also be used in geotechnical engineering to reinforce soil or rock formations. Buttressing is an essential technique in ensuring the safety and stability of structures and materials.