Main Entry: sol·u·ble

Pronunciation: \ˈsäl-yə-bəl\

Function: adjective

Etymology: Middle English, from Anglo-French, digestible, laxative, from Late Latin solubilis, from Latin solvere to loosen, dissolve — more at solve

Date: 15th century

1 : susceptible of being dissolved in or as if in a liquid and especially water
2 : subject to being solved or explained <soluble questions>