Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.


One that activates, especially a device responsible for actuating a mechanical device, such as one connected to a computer by a sensor link.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈæk tʃuˌeɪ tər)

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


A mechanism that furnishes the force required to displace a control surface or other control element.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actuator - a mechanism that puts something into automatic action
mechanism - device consisting of a piece of machinery; has moving parts that perform some function
positioner, rotary actuator - (computer science) the actuator that moves a read/write head to the proper data track
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This characteristic is necessary for development of mathematical model of bellow actuator. And it is not represented in Festo catalogue.
On investigation, the right main landing gear actuator was found cracked.
The P700 series actuators assure efficient performance of both the actuator and the Fisher C series internal valve to deliver full valve capacity.
According to SKF, its electromechanical actuators offer a flexible yet reliable actuator solution.
A parallel electrostatic actuator is usually made of two electrodes which has two surfaces facing each other.
The moment due to eccentricity of the actuator is [M.sub.e] = F x e, where e is the eccentricity.
Sunny is the first actuator to be produced at Lindal's new Itupeva facility in Sao Paulo, Brazil.
The width of the piezoelectric actuator, the length of the piezoelectric actuator, the thickness of the piezoelectric actuator, and the electrode setting are chosen to be the design factors.
Wiseguyreports.Com Publish New Market Research Report On -"HVAC Damper Actuator Market 2019 Global Analysis, Size, Share, Trends, Opportunities and Growth, Forecast 2025"
Fact.MR study foretells the automotive actuators market to record an expansion at 6.8% CAGR over the forecast period (2018-2028)
Summary: Fact.MR study foretells the automotive actuators market to record an expansion at 6.8% CAGR over the forecast period (2018-2028)