-bust, -ust, -bur; bust-, bur-, ur- +
(Latin: burere, "to burn up"; from urere, with an inserted or faulty separation of b in amburere, "to burn around"; which stands for amb-urere, "to burn around", but it was misdivided into am-burere and because of this misdivision, the new verb burere was formed with the past participle bustum; so, it really came from urere, "to burn, to singe")
2. A tube, resistant to high temperatures and usually composed of glass, silica, or porcelain.
It is used to hold samples during pyrolysis (decomposition of complex molecules by heat) or elemental (fundamental) analysis.
2. A heat engine that converts the energy of fuel into work by using compressed, hot gas as the working medium and which usually delivers its mechanical output power either as torque through a rotating shaft (industrial gas turbines) or as jet power in the form of velocity through an exhaust nozzle (aircraft jet engines).
3. An internal combustion engine in which liquid or gaseous fuel is used to generate mechanical energy through a rotating shaft, which then drives an electric generator or another piece of equipment.
4. One of a class of heat engines that use fuel energy to produce mechanical output power, either as torque through a rotating shaft (industrial gas turbines) or as jet power in the form of velocity through an exhaust nozzle (aircraft jet engines).
The fuel energy is added to the working substance, that is gaseous in form and most often air, either by direct internal combustion or indirectly through a heat exchanger.
2. A zone of burning propagated or transmitted through a combustible medium.
3. The zoned, reacting, gaseous material formed when an explosive mixture is ignited.
2. A usually rapid chemical process; such as, oxidation, that produces heat and usually light; also, a slower oxidation, as in the body.
3. A violent agitation.
2. The system in a gas turbine or jet engine that contains burners, ignitors (devices for lighting or igniting fuel), and injection devices in addition to the combustion chamber.
3. The combustion chamber together with burners, ignitors, and injection devices in a gas turbine or jet engine.
- An air-fuel mixture is drawn into the cylinder and compressed.
- Heat transfer is added by the spark ignition of the fuel mixture in the cylinder.
- The gases produced by this combustion expand to move the piston downward for the power stroke.
- The burned gases in the cylinder are expelled.
Named after Nikolaus August Otto (1832-1891), a German engineer and inventor.
2. Slightly explosive; liable to snap and crackle when heated; as salt does.