- a form of air switch in which a moving element, usually a hinged blade, is placed between two contact clips.
Origin of knife switch
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for knife switch
- an electric switch in which a flat metal blade, hinged at one end, is pushed between fixed contacts
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