self-propelled

Definition of Self-propelled in English :

containing within itself the means of propulsion or movement

Example Sentences:
'a self-propelled vehicle'

2. self-propelled, self-propelling

moved forward by its own force or momentum

Example Sentences:
'a self-propelled egotist'
'the arms program is now self-propelled'

WordNet Lexical Database for English. Princeton University. 2010.

Self-propelled

adjective

(of a vehicle) provided with its own source of tractive power rather than requiring an external means of propulsion

adjective

propelled by its own motor or power

: also ˈself-proˈpelling

adj.

1. Containing its own means of propulsion: a self-propelled golf cart.

2. Fired from or mounted on a moving vehicle: a self-propelled howitzer.