n.
Pronunciation: ' säl-y ə -b ə l
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>