#self-propulsion

• Autochory — The biological and biomechanical process of autonomous dispersal or spreading of seeds, spores, or fruits by a plant, utilizing exclusively its own mechanisms and structures (such as capsule explosion, self-propulsion, or cellular tension), without the help of external vectors like wind, water, or animals. This structural strategy usually limits dispersal to the immediate geographic area.
• Self-propulsion — The act of self-propelling and its result; a technical or mechanical process through which a vehicle, projectile, or body generates its force of motion and spatial displacement utilizing an internal energy source or its own engine, without the input of an external pulling or pushing force. This structural system is fundamental in the design of rockets, spacecraft, submarines, and heavy self-propelled machinery, optimizing the operational independence of the assembly.
• Self-propulsion — The structural capacity of a vehicle, technical system, or body to move through space by generating motive force using an onboard engine or internal energy source, without the input of an external mechanical action (such as towing or pushing). This kinematic principle is fundamental in designing motor vehicles, modern artillery systems, rockets, and combine harvesters, guaranteeing full operational independence during travel.