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general::
Phrase(s): melt in something
1. [for something] to melt to a liquid at a high temperature. • Surely the plastic cup will melt in such heat. • This tray will melt in the oven, so keep it out of there. 2. [for something] to dissolve in a particular liquid. • Sugar melts in hot water easily. • Will this substance melt in heated water?
McGrawhill's American Idioms And Phrasal Verbs