Meaning of the word "molten rock" in English

What does "molten rock" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

molten rock

US /ˈmoʊltən rɑk/
UK /ˈməʊltən rɒk/

Noun

rock that has been heated to such a high temperature that it has turned into a liquid

Example:
The volcano erupted, spewing hot molten rock down its sides.
Deep beneath the Earth's surface, there are vast reservoirs of molten rock.