H2O

Definitions of H2O
  1. noun
    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
    synonyms: eau
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    eau de vaisselle
    water in which dishes and cooking utensils are washed
    eau de source
    underground water that is held in the soil and in pervious rocks
    eau de mer
    water containing salts
    eau de pluie
    drops of fresh water that fall as precipitation from clouds
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