[{"Bold_text": "noun", "List Items": ["Civil Engineering.a conduit or artificial channel for conducting water from a distance, usually by means of gravity.a bridgelike structure that carries a water conduit or canal across a valley or over a river.", "a conduit or artificial channel for conducting water from a distance, usually by means of gravity.", "a bridgelike structure that carries a water conduit or canal across a valley or over a river.", "Anatomy.a canal or passage through which liquids pass."]}]