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actuator

[ak-choo-ey-ter]
noun
  1. a person or thing that actuates.
  2. a servomechanism that supplies and transmits a measured amount of energy for the operation of another mechanism or system.
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Origin of actuator

First recorded in 1860–65; actuate + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for actuator

Historical Examples of actuator

  • He struggled with his vulcanized suit, trying to squeeze from under the actuator.

    Tight Squeeze

    Dean Charles Ing

  • Obviously, the actuator had smashed his transmitter, but left the receiver section intact.

    Tight Squeeze

    Dean Charles Ing

  • The tape moved on unperturbedly, reminding him to inspect the actuator bearings and extension rods.

    Tight Squeeze

    Dean Charles Ing

  • The "internal controller," the actuator of all spirits, according to the text: Who abiding in the soul, rules the soul within.

  • When I put enough voltage across its terminals, the actuator clicked down through the core.