1.
[syn: propellant, propellent, propelling, propulsive]
The Collaborative International Dictionary of English v.0.48:
Propel \Pro*pel"\, v. t. [imp. & p. p. Propelled; p. pr. & vb.
n. Propelling.] [L. propellere, propulsum; pro forward +
pellere to drive. See Pulse a beating.]
To drive forward; to urge or press onward by force; to move,
or cause to move; as, the wind or steam propels ships; balls
are propelled by gunpowder.
[1913 Webster]
WordNet (r) 3.0 (2006):
propelling
adj 1: tending to or capable of propelling; "propellant fuel for
submarines"; "the faster a jet plane goes the greater its
propulsive efficiency"; "universities...the seats of
propulsive thought" [syn: propellant, propellent,
propelling, propulsive]