Definitions of seawater
  1. noun
    water containing salts
    synonyms: brine, saltwater
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    fresh water, freshwater
    water that is not salty
    red tide
    seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin
    type of:
    H2O, 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
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