Definition

1. Adjective:
   • Capable of moving forward by its own power or momentum: Describes an object, vehicle, or system that generates the force required for its own movement without external pushing or pulling.
   • Proceeding or continuing under its own impetus, often without further external input: Describes a process, program, or activity that, once initiated, sustains its own progress or momentum.

Examples of Usage

• Adjective:
  • The new model is a self-propelling robotic vacuum cleaner that navigates a room independently.
  • Once the project gained management support, it became self-propelling and required little additional oversight.
  • The satellite is a self-propelling unit with its own thrusters for course corrections.

Advanced Usage

• Figurative Use: Used to describe abstract concepts like careers, economic cycles, or social movements that develop their own sustaining energy.
  • Her success created a self-propelling cycle of confidence and achievement.
• Technical/Engineering Context: Specifically denotes machinery or vehicles with an onboard source of motive power (e.g., engine, motor), as opposed to being towed or pushed.
  • The factory phased out towed carts in favor of self-propelling automated guided vehicles.

Variants and Related Words

• Self-propelled (adjective): Often used interchangeably with "self-propelling," particularly to describe vehicles.
  • The army uses self-propelled artillery.
• Self-propulsion (noun): The capability of self-propelling.
  • The submarine's self-propulsion allows for long underwater missions.

Synonyms

• Automotive (especially for vehicles)
• Self-moving
• Self-driven (figurative)
• Autonomous (implies self-governing intelligence along with self-propulsion)

Related Phrases

• Gain a self-propelling momentum: To reach a state where progress becomes largely self-sustaining.
  • After the initial investment, the research initiative gained a self-propelling momentum.
• Inherently self-propelling: Having a built-in or fundamental characteristic of propelling itself.
  • The design of the device is inherently self-propelling.

Adjective

1. moved forward by its own force or momentum
   • a self-propelled egotist
   • the arms program is now self-propelled
2. containing within itself the means of propulsion or movement
   • a self-propelled vehicle