I. kəmˈbəst adjective
Etymology: Middle English, from Middle French, from Latin combustus, past participle of comburere to burn up — more at combustion
1. of a planet : so near the sun as to be obscured or overpowered by its light
2. obsolete : burned , consumed
II. verb
( -ed/-ing/-s )
transitive verb
: burn , consume
machines are delivering up to 25 percent of the fuel they combust — D.C.Peattie
intransitive verb
1. : to burn fuel
the engine regularly combusted — Andy Logan
2. : burn : become consumed — used chiefly of fuels