Find the word definition

Crossword clues for propulsion

Longman Dictionary of Contemporary English
propulsion
noun
COLLOCATIONS FROM OTHER ENTRIES
jet propulsion
COLLOCATIONS FROM CORPUS
■ NOUN
jet
▪ Somewhere inside itself, the thing had a sort of jet propulsion.
▪ Both creatures can, like the nautilus, use jet propulsion on occasion.
rocket
▪ Remember that the principle of rocket propulsion simply requires high-speed molecules to push against the rocket.
▪ This is the secret of rocket propulsion.
system
▪ As with the service propulsion system, the propellants were force-fed to the engine by pressurized helium from a storage tank.
▪ This kind of propulsion system is called a solar thermal rocket.
▪ Refinements for the propulsion system came from a group working with Kensaku Imaichi at Osaka University.
▪ In terms of the demands placed on spacecraft propulsion systems, Uranus is easiest and Neptune is second.
▪ It also provided the main propulsion system for the Apollo spacecraft.
▪ As it turned out, the propulsion system performed normally.
▪ The Voith Schneider propulsion system provided the high level of manoeuvrability required for port operations and for barge handling in the estuary.
▪ The company said it was selling to concentrate on building tanks, howitzers, propulsion systems and Cosworth engines.
EXAMPLES FROM OTHER ENTRIES
▪ jet propulsion
EXAMPLES FROM CORPUS
▪ As with the service propulsion system, the propellants were force-fed to the engine by pressurized helium from a storage tank.
▪ But power for activities in the belt and for propulsion of spacecraft is harder to find.
▪ First and most radical, a new means of propulsion other than the internal combustion engine might be considered.
▪ The most significant of these may be the use of helium-3 in spacecraft propulsion, in a fusion rocket.
▪ The pods themselves were quite complex, but essentially they were multi-skinned torpedoes equipped with minimal propulsion and life-support systems.
▪ Their fins and tail are freed for guidance and rapid propulsion.
▪ Their swim fins are extra long to provide maximum propulsion and minimum strain.
▪ This kind of propulsion system is called a solar thermal rocket.
The Collaborative International Dictionary
Propulsion

Propulsion \Pro*pul"sion\, n. [Cf. F. propulsion. See Propel.]

  1. The act driving forward or away; the act or process of propelling; as, steam propulsion.

  2. An impelling act or movement.

    God works in all things; all obey His first propulsion.
    --Whittier.

Douglas Harper's Etymology Dictionary
propulsion

1610s, "expulsion," noun of action formed from propuls-, past participle stem of Latin propellere "to propel" (see propel). Meaning "act of driving forward, propulsive force" first attested 1799.

Wiktionary
propulsion

n. force causing movement.

WordNet
propulsion
  1. n. a propelling force

  2. the act of propelling [syn: actuation]

Wikipedia
Propulsion

A technological system uses an engine or motor as the power source, and wheels and axles, propellers, or a propulsive nozzle to generate the force. Components such as clutches or gearboxes may be needed to connect the motor to axles, wheels, or propellors.

Biological propulsion systems use an animal's muscles as the power source, and limbs such as wings, fins or legs as the propulsors.

Usage examples of "propulsion".

The deck began to tremble as the huge twin steam propulsion turbines aft came up to full revolutions, blasting the Tampa through the water at one hundred percent reactor power.

But if the nukes aft could get propulsion they could take control of the rudder, and with Lennox in the sail and communications with the walkie-talkies, Lennox and the nukes alone could drive the ship away from the pier.

McDermitt and Chief Gerald hurried for the walled-in room aft of the escape trunk--the maneuvering room that was the control for the entire propulsion plant and would be a key space to secure in order to get the Tampa out on its own power.

The other green, Res Sandre, preferred to monitor propulsion and engineering, working with the reticent AI named Basho to use this time out of Hawking space to good advantage in taking stock.

Since colchicine retards cell-division, a propulsion spell was used to ensure its efficacy.

I let the propulsion wedge me firmly into a niche, then wriggled about until my right wrist was in contact with a rough coralline peg.

The institute was a thoroughly modern and up-to-date facility, in keeping with the modern and up-to-date subjects taught within its walls: electricity and electronics, mechanics, plumbing, recycling and reclamation, construction, carpentry, accounting and bookkeeping, secretarial skills, data recording, computer programming and repair, cybernation maintenance, aeronautics, solar-cell construction, electrical generating, motion-picture projection, camera operation, audio recording, hydrogen-fusion operation, power broadcasting, electrical space propulsion, satellite construction and repair, telemetry, and many more.

The bacterial method of propulsion may well have evolved from an attack mechanism.

But there was no line of RAF men in blue serge standing to attention for Winston Churchill to inspect, no flyby of a squadron of Pioneers or Meteors to impress him with what Fred Hipple and his team had accomplished in jet propulsion.

The bacterial cilium that Behe presents as one of his cases of irreducible complexity is a whiplike rotary paddle used for propulsion, driven by an intricate molecular machine that includes an acid-powered engine, stator housing, O-rings, bushings, and a drive shaft, and is built from over 40 interacting proteins, every one of them essential.

While Kynan finished tightening connections, Koot attached the ducted fans which would provide propulsion and steering capability.

The captain flattened the propulsion fields and slewed the ship sideways at a right angle to the course line, then even before the frigate was reoriented, pulsed the de-energizers twice more on the nexus linch point between the shields of two towers.

Captain, about superbombs, also about atomic-powered propulsion, all very theoretical.

You know nothing of nuclear reactors, turbines, propulsion, hydrology, electronics, engineering, mechanics, missiles, navigation, sonar, or torpedoes.

Low steam pressure in the steam generators starved the propulsion turbines and turbine generators in the engine room.