# servo

/ˈsɝvoʊ/ (US) · /sˈɜːvəʊ/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/servo
Updated: 2026-05-19

## Definition

a small machine or motor that moves a part of a system exactly to a specific position. It is often used in robotics or model airplanes to control things like wings or wheels.

For teachers: a mechanical or electronic device that uses a feedback mechanism to precisely control the position or velocity of a system. Often used in robotics, automation, and remote-controlled vehicles.

## Examples

- The robot uses a servo to open and close its gripper.
- The model airplane's wings are controlled by a small servo that responds to the pilot's radio signals.
- In industrial automation, a high-precision servo ensures that the robotic arm moves with millimeter accuracy, maintaining the integrity of the assembly line's delicate components.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.