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propulsive (adj.)

1640s, "having the power or tendency to drive off or away," a sense now obsolete, from propuls-, past-participle stem of Latin propellere "to propel" (see propel) + -ive. The meaning "tending or having power to drive onward or forward" is from 1758.

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Definitions of propulsive from WordNet

propulsive (adj.)
having the power to propel;
propulsive coefficient
propulsive (adj.)
tending to or capable of propelling;
universities...the seats of propulsive thought
the faster a jet plane goes the greater its propulsive efficiency
Synonyms: propellant / propellent / propelling
From wordnet.princeton.edu