'Combustion chamber' definitions:

Definition of 'Combustion chamber'

From: GCIDE
  • Combustion chamber \Com*bus"tion cham`ber\ (Mech.) (a) A space over, or in front of, a boiler furnace where the gases from the fire become more thoroughly mixed and burnt. (b) The clearance space in the cylinder of an internal combustion engine where the charge is compressed and ignited. [Webster 1913 Suppl.]