What is the term for a geological formation that transmits water?

An aquifer is a geological formation characterized by its ability to transmit water, acting as a crucial resource for groundwater. Comprised predominantly of permeable materials such as sand, gravel, or fractured rock, aquifers allow for the storage and flow of water underground.

This term is essential in hydrology and agricultural engineering, where understanding water availability is vital for irrigation and other agricultural practices. Aquifers can supply water through wells, which draw from this stored groundwater. While reservoirs refer to constructed or natural lakes where water is stored, and springs indicate where groundwater naturally flows to the surface, these terms do not specifically denote formations that transmit water like an aquifer does.