microswitch

[ mahy-kruh-swich ]
/ ˈmaɪ krəˌswɪtʃ /

noun

a highly sensitive switch used in automatic-control devices.

Origin of microswitch

First recorded in 1955–60; micro- + switch

British Dictionary definitions for microswitch

microswitch
/ (ˈmaɪkrəʊˌswɪtʃ) /

noun

electrical engineering a switch that operates by small movements of a lever