Soluble

soluble
    adj 1: (of a substance) capable of being dissolved in some
           solvent (usually water) [ant: {indissoluble},
           {insoluble}]
    2: susceptible of solution or of being solved or explained; "the
       puzzle is soluble" [ant: {insoluble}]
    

Soluble \Sol"u*ble\, a. [L. solubilis, fr. solvere, solutum, to
   loosen, to dissolve: cf. F. soluble. See {Solve}, and cf.
   {Solvable}.]
   1. Susceptible of being dissolved in a fluid; capable of
      solution; as, some substances are soluble in alcohol which
      are not soluble in water.
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            Sugar is . . . soluble in water and fusible in fire.
                                                  --Arbuthnot.
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   2. Susceptible of being solved; as, a soluble algebraic
      problem; susceptible of being disentangled, unraveled, or
      explained; as, the mystery is perhaps soluble. "More
      soluble is this knot." --Tennyson.
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   3. Relaxed; open or readily opened. [R.] "The bowels must be
      kept soluble." --Dunglison.
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   {Soluble glass}. (Chem.) See under {Glass}.
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