Definition of water

• binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
• the part of the earths surface covered with water (such as a river or lake or ocean); "they invaded our territorial waters"; "they were sitting by the waters edge"
• a facility that provides a source of water; "the town debated the purification of the water supply"; "first you have to cut off the water"