You searched for: “comburence
1. Something that burns; such as, the comburence of a gas is defined as the number of volumes of air required for a perfect combustion, as distinguished from combustible.
2. Etymology: from Latin comburere, "to burn up, to consume".
This entry is located in the following units: -bust, -ust, -bur; bust-, bur-, ur- + (page 1) -ence, -ency (page 2)