self-acting

[ self-ak-ting ]

adjective

1. acting by itself; automatic.

self-acting

adjective

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

Derived Forms

• ˌself-ˈaction, noun

Other Words From

• self-action noun

Word History and Origins

Origin of self-acting¹

First recorded in 1670–80

Example Sentences

This self-acting cable key was brought out in 1876, and tried on the lines of the Eastern Telegraph Company.

From Project Gutenberg

There must also be change wheels, studs and quadrant plates, self-acting feed for surfacing and cross slide, and clamping nuts.

From Project Gutenberg

Behind were six fire-flies, well supplied with self-acting lamps, which they kept hidden somewhere under their wings.

From Project Gutenberg

His cottage was quite a curiosity-shop of models of engines, self-acting planes, and perpetual-motion machines.

From Project Gutenberg

This was one of the first self-acting inclines laid down in the district.

From Project Gutenberg