combustion

The act or process of burning.countableuncountable

• An old prophecy that the whole world, sky and earth alike, was destined to perish in a grand and final combustion.

A process whereby two chemicals are combined to produce heat.countableuncountable

A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat.countableuncountable

Violent agitation, tumult.countablefigurativelyuncountable

• There [were] great combustions and divisions among the heads of the university.
• Him the Almighty Power / Hurld headlong flaming from th' Etherial Skie / With hideous Ruine and combustion down / To bottomless perdition, there to dwell / In Adamantine Chains and penal Fire, / Who durst defie th' Omnipotent to Arms.