What is molten matriel

Molten material is a hot liquid, such as lava, that is formed from the melting of different types of rock.

Everybody always uses it to mean some kind of liquid that's hot and smoking,

like glowing smoking molten lava creeping down the sides of a volcano, or red

hot molten steel pouring out of the furnace in a steel mill in a shower of sparks.

But I think technically it just means melted ... water is molten ice.