melting point 
noun
The temperature at which a given solid will melt.The refractory metals are conveniently described as those which, first of all, melt at temperatures well above the melting points of the common alloying bases, iron, cobalt, and nickel....
- Saturated fatty acids have higher melting points than unsaturated materials and are typically solid at room temperature.
- Bronze is easier to cast than copper because it has a lower melting point and is more liquid than copper at a given temperature.