You searched for: “destructive distillation
destructive distillation (s) (noun), destructive distillations (pl)
A process in which a carbon-containing material; such as, coal or oil shale is heated in the absence of air, resulting in its decomposition into solids, liquids, and gases, with the solid end product being carbon.
This entry is located in the following unit: stru-, struct-, -structure, -struction, -structive (page 3)