| aircraft engine | the engine that powers and aircraft |
| automobile engine | the engine that propels an automobile |
auxiliary engine
donkey engine | (nautical) a small engine (as one used on board ships to operate a windlass) |
| cooling system engine cooling system | equipment in a motor vehicle that cools the engine |
diesel
diesel engine
diesel motor | an internalombustion engine that burns heavy oil |
| engine | motor that converts thermal energy to mechanical work |
| engine | an instrument or machine that is used in warfare, such as a battering ram, catapult, artillery piece, etc., medieval engines of war |
engine block
cylinder block
block | a metal casting containing the cylinders and cooling ducts of an engine, the engine had to be replaced because the block was cracked |
engineering
engine room | a room (as on a ship) in which the engine is located |
| externalombustion engine | a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy |
fanjet
fan-jet
fanjet engine
turbojet
turbojet engine
turbofan
turbofan engine | a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust |
fire engine
fire truck | any of various large trucks that carry firemen and equipment to the site of a fire |
four-stroke engine
four-stroke internalombustion engine | an internalombustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke, work is done on the third stroke and the products of combustion are exhausted on the fourth stroke |
| gas engine | an internalombustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor |
gasoline engine
petrol engine | an internalombustion engine that burns gasoline, most automobiles are driven by gasoline engines |
| heat engine | any engine that makes use of heat to do work |
internalombustion engine
ICE | a heat engine in which combustion occurs inside the engine rather than in a separate furnace, heat expands a gas that either moves a piston or turns a gas turbine |
| ion engine | a type of reaction-propulsion engine to propel rockets in space, a stream of positive ions is accelerated to a high velocity by an electric field |
| jet engine | a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsion |
locomotive
engine locomotive engine
railway locomotive | a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks |
| pilot engine | a locomotive that precedes a train to check the track |
radial engine
rotary engine | an internalombustion engine having cylinders arranged radially around a central crankcase |
ramjet
ramjet engine
atherodyde
athodyd
flying drainpipe | a simple type of jet engine, must be launched at high speed |
reaction-propulsion engine
reaction engine | a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream |
| reciprocating engine | an internalombustion engine in which the crankshaft is turned by pistons moving up and down in cylinders |
rocket
rocket engine | a jet engine containing its own propellant and driven by reaction propulsion |
| rotary engine | an internalombustion engine in which power is transmitted directly to rotating components |
| steam engine | externalombustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder |
switch engine
donkey engine | a locomotive for switching rolling stock in a railroad yard |
tank engine
tank locomotive | a locomotive that carries its own fuel and water, no tender is needed |
| traction engine | steam-powered locomotive for drawing heavy loads along surfaces other than tracks |
| valve-in-head engine | internalombustion engine having both inlet and exhaust valves located in the cylinder head |
Wankel engine
Wankel rotary engine
epitrochoidal engine | a rotary engine that is a four-stroke internalombustion engine without reciprocating parts |
somatotropin
somatotrophin
somatotropic hormone
somatotrophic hormone
STH
human growth hormone
growth hormone | a hormone produced by the anterior pituitary gland, promotes growth in humans |
| search engine | a computer program that retrieves documents or files or data from a database or from a computer network (especially from the internet) |
emergence outgrowth
growth | the gradual beginning or coming forth, figurines presage the emergence of sculpture in Greece |
rapid climb
rapid growth
zoom | a rapid rise |
| engine failure | engine does not run |
| growth industry | an industry that is growing rapidly |
| growth | vegetation that has grown, a growth of trees, the only growth was some salt grass |
| growth | something grown or growing, a growth of hair |
engineer locomotive engineer
railroad engineer
engine driver | the operator of a railway locomotive |
| engine | something used to achieve a purpose, an engine of change |
annual ring
growth ring | an annual formation of wood in plants as they grow |
old growth
virgin forest | forest or woodland having a mature or overly mature ecosystem more or less uninfluenced by human activity |
| second growth | a second growth of trees covering an area where the original stand was destroyed by fire or cutting |
| growth stock | stock of a corporation that has had faster than average gains in earnings and is expected to continue to |
| economic growth | steady growth in the productive capacity of the economy (and so a growth of national income) |
growth
growing
maturation
development ontogeny
ontogenesis | (biology) the process of an individual organism growing organically, a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level, he proposed an indicator of osseous development in children |
| growth | a progression from simpler to more complex forms, the growth of culture |