Longman Dictionary of Contemporary English homepage

Topic: PHYSICS

Date: 1600-1700
Language: Latin
Origin: propulsus, past participle of propellere; PROPEL

propulsion

noun
     
pro‧pul‧sion [uncountable] technical
TEMTT the force that drives a vehicle forward [↪ propel]
research into liquid hydrogen as a means of propulsion
propulsive adjective
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