| ̷ ̷ ̷ ̷| ̷ ̷ adjective
1.
a.
(1) : propelled by its own motor
a self-propelled vehicle
(2) : propelled by its own fuel
a self-propelled missile
b. : moved forward by one's or its own force or momentum
a thundering self-propelled egotist — Winthrop Sargeant
the arms program is now self-propelled — Time
2.
a. : mounted on or fired from a moving vehicle
a self-propelled gun
b. : serving as a moving carrier for a weapon
a self-propelled mount