del·i·ques·cent /-ˈkwɛsṇt/
  (a.)溶解的,溶解性的
  Del·i·ques·cent a.
  1. Dissolving; liquefying by contact with the air; capable of attracting moisture from the atmosphere and becoming liquid; as, deliquescent salts.
  2. Bot. Branching so that the stem is lost in branches, as in most deciduous trees.
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  deliquescent
       adj : (especially of certain salts) becoming liquid by absorbing
             moisture from the air