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microswitch

[mahy-kruh-swich]
noun
  1. a highly sensitive switch used in automatic-control devices.

Origin of microswitch

First recorded in 1955–60; micro- + switch
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for microswitch

microswitch

noun
  1. electrical engineering a switch that operates by small movements of a lever
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