Aqueduct feature is a term used to describe the architectural elements of an aqueduct, which is a structure used to transport water from one place to another. The two crossword solutions for this term are ARCH and RACE. An ARCH is a curved structure that is used to span an open space, such as a bridge or doorway, and is often used in aqueducts to support the weight of the water. A RACE is a channel or conduit that is used to direct the flow of water, and is also commonly used in aqueducts.