Definition of propulsion in US English:

propulsion

noun

  • The action of driving or pushing forward.

    ‘they dive and use their wings for propulsion under water’
    • ‘The latter ended up drifting without navigation or propulsion for two hours.’
    • ‘They feed by day and by night, and forage by swimming underwater, using their wings for propulsion.’
    • ‘This is obviously beneficial, given that more propulsion helps us to move forwards.’
    • ‘An aeroplane requires a set of wings for lift, wing flaps and rear rudder for control and engines for propulsion.’
    • ‘Learning how to minimise drag has a far greater impact than maximising propulsion.’
    • ‘I flew downward but with a burst of propulsion I was able to stop my descent.’
    • ‘Contributors to the collection address these metaphors of propulsion and seizure.’
    • ‘The units will provide auxiliary power to the vehicles and will not be used for propulsion.’
    • ‘This kick has more forward propulsion and causes the hips to rise, just like in butterfly.’
    • ‘Kitesurfing involves riding a small board over water while gaining propulsion from the wind by means of a large kite.’
    • ‘The propulsion and power systems are controlled from the Machinery Control Room.’
    • ‘In the fast ferry industry the water jet is becoming the predominant propulsion of choice.’
    • ‘As the name implies, it is a hovercraft type of vehicle with motorcycle steering and propulsion.’
    • ‘In electric traction, the first inventions for propulsion of vehicles were by battery-stored power.’
    • ‘All sea snakes have flattened compressed paddle-like tails for propulsion in water.’
    • ‘I was happy that the wrecks of Champion and Iona were still there, giving divers the chance to see a method of propulsion that is now almost extinct.’
    • ‘It will be the first European probe using electric propulsion.’
    • ‘There are, though, two half-hearted subplots which give some vague sense of propulsion.’
    • ‘With more effort my propulsion through the water increased, although I still used my hands for balance.’
    • ‘Because he found it harder to gain purchase with his feet, he was using his knees for propulsion, rubbing them red in the process.’
    thrust, motive force, propelling force, impelling force, impetus, impulse, drive, driving force, actuation, push, surge, pressure, momentum, power
    View synonyms

Origin

Early 17th century (in the sense ‘expulsion’): from medieval Latin propulsio(n-), from Latin propellere ‘drive before (oneself)’.

Pronunciation

propulsion

/prəˈpəlʃən//prəˈpəlSHən/