The most comprehensive Melting point Definition is,
The temperature at which liquid & solid form of a substance co-exits in equilibrium under given pressure, is called Melting point.
Normally standard pressure is taken as 1 atmosphere.
In other way, we can also define melting point as,
The temperature at which solid phase of a substance change into liquid phase under given pressure, is called Melting point.
The process of liquefaction of a substance at particular temperature under specific pressure, is Melting definition.
Melting points Examples:
Name Melting Point in OC
Carbon Dioxide -78