salinity
  鹽分,鹽度
  sa·lin·i·ty /seˈlɪnətɪ, sə-/ 名詞
  鹽濃度,鹽度,鹽分,含鹽量
  Sa·lin·i·ty n. Salineness.
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  salinity
       n 1: the taste experience when salt is taken into the mouth [syn:
             salt, saltiness]
       2: the relative proportion of salt in a solution [syn: brininess]