sol·u·ble /ˈsɑljəbəl/ 形容詞
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. [R.] “The bowels must be kept soluble.”
Soluble glass. Chem. See under Glass.
adj 1: (of a substance) capable of being dissolved in some solvent
(usually water) [ant: insoluble]
2: susceptible of solution or of being solved or explained;
"the puzzle is soluble" [ant: insoluble]