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.

Origin of actuator

1
First recorded in 1860–65; actuate + -or2

Words Nearby actuator

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use actuator in a sentence

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

    The Trouble with Telstar | John Berryman
  • The "internal controller," the actuator of all spirits, according to the text: Who abiding in the soul, rules the soul within.

    The Sarva-Darsana-Samgraha | Madhava Acharya
  • The valves are mounted side by side, as shown at E, so the double actuator member may be operated by a single set of cams.

    Aviation Engines | Victor Wilfred Pag