Definitions for self-propelled
Random House Webster's College Dictionary
propelled by itself.
(of a vehicle) propelled by its own engine, motor, or the like.
(of a gun or rocket launcher) having a vehicle as a base.
Origin of self-propelled:
automotive, self-propelled, self-propelling(adj)
containing within itself the means of propulsion or movement
"a self-propelled vehicle"
moved forward by its own force or momentum
"a self-propelled egotist"; "the arms program is now self-propelled"
Having its own means of propulsion that moves with it.
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