[{"Bold_text": null, "List Items": ["a combining form meaning “water,” used in the formation of compound words:hydroplane; hydrogen."]}, {"Bold_text": null, "List Items": ["a combining form representinghydrogenin compound words, denoting especially a combination of hydrogen with some negative element or radical:hydrobromic."]}, {"Bold_text": "noun", "List Items": ["Informal.hydroelectric power.", "Informal. hydroplane .", "British.a bathhouse, hotel, or resort catering to people taking mineral-water health cures; spa.an establishment furnishing hydrotherapy.", "a bathhouse, hotel, or resort catering to people taking mineral-water health cures; spa.", "an establishment furnishing hydrotherapy."]}, {"Bold_text": "adjective", "List Items": ["Informal.of, relating to, or furnishing water, water power, or hydroelectricity:funds for new hydro projects."]}]