thermal decomposition
noun /ˌθɜːml ˌdiːˌkɒmpəˈzɪʃn/
/ˌθɜːrml ˌdiːˌkɑːmpəˈzɪʃn/
[uncountable] (chemistry)- the process in which one substances in broken down by heat into two or more simpler substances
- Thermal decomposition of limestone is one of the processes that occurs in a blast furnace.