combustion

nouns

a process in which a substance reacts with oxygen to give heat and light
burning, combustion
is derived from
combust
a state of violent disturbance and excitement
"combustion grew until revolt was unavoidable"
combustion
is a type of (narrower)
a state of commotion and noise and confusion
garboil, tumult, tumultuousness, uproar
the act of burning something
"the burning of leaves was prohibited by a town ordinance"
burning, combustion
is derived from
combust