self-propelling
- s containing within itself the means of propulsion or movement
- s moved forward by its own force or momentum
- Thus, initial outlay of $2,100 which he got back, Adman Winters put in motion self-propelling publicity vehicle extremely simple to operate.
- And the cycle of migration is self-propelling.
- Chances are, however, that even so they will exert themselves less than the Apollo 14 astronauts did; their longer excursions will be made in the first self-propelling, manned .