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self-acting

American  
[self-ak-ting] / ˈsɛlfˈæk tɪŋ /

adjective

  1. acting by itself; automatic.


self-acting British  

adjective

  1. not requiring an external influence or control to function; automatic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of self-acting

First recorded in 1670–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Its new rule said bump stocks were illegal machine guns because they function as “a self-acting or self-regulating mechanism that allows the firing of multiple rounds through a single function of the trigger.”

From Los Angeles Times Feb. 28, 2024

It said the bump stock device functions as “a self-acting or self-regulating mechanism that allows the firing of multiple rounds through a single pull of the trigger.”

From Los Angeles Times Nov. 3, 2023

The spindles are fitted with self-acting motions o1 and o2, which are easily thrown in and out of gear.

From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose

Here the Grail, the chalice of the Last Supper, is at the same time, as in the Gawain stories, self-acting and food-supplying.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various

There were no skilled workmen to be had, no self-acting tools, as in our day, and so the first model was only partly successful.

From The Boyhood of Great Inventors by A. Fraser Robertson

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