plural of combustion

(chemistry) The act or process of burning. / A process where two chemicals are combined to produce heat. / A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat.

present participle of combust

Of, pertaining to, caused by, or partaking in combustion.

The quality or state of being combustible

The state or quality of being combustible.

Capable of burning. / (figuratively, dated) Easily kindled or excited; quick; fiery; irascible.

A material that is capable of burning.

To burn; to catch fire. / (intransitive, figuratively) To erupt with enthusiasm or boisterousness.

(obsolete) Burnt. / (astrology) In close conjunction with the sun (so that its astrological influence is "burnt up"), sometimes specified to be within 8 degrees 30'.