1. Susceptible of being dissolved in a fluid; capable of solution; as, some substances are soluble in alcohol which are not soluble in water. "Sugar is . . . Soluble in water and fusible in fire." (Arbuthnot)

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."

3. Relaxed; open or readily opened. "The bowels must be kept soluble." Soluble glass.

<chemistry> See Glass.

Origin: L. Solubilis, fr. Solvere, solutum, to loosen, to dissolve: cf. F. Soluble. See Solve, and cf. Solvable.

(01 Mar 1998)