- 1soluble (in something) that can be dissolved in a liquid soluble aspirin Glucose is soluble in water. a highly soluble gas
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- 2(formal) (of a problem) that can be solved The problem does not seem soluble. opposite insoluble
NAmE//ˌsɑlyəˈbɪlət̮i//
noun [uncountable] The solubility of a gas decreases with increasing temperature.See soluble in the Oxford Advanced Learner's DictionaryCheck pronunciation: soluble