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The Best Internet Slang

knife switch

noun, Electricity.
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 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for knife switch
Historical Examples
  • Cover the blade of the knife switch with a fold of paper and close it.

    Common Science Carleton W. Washburne
  • Turn off the electricity both at the snap switch and at the knife switch.

    Common Science Carleton W. Washburne
  • Connect two heavy insulated copper wires, about No. 12, to the sides of the knife switch just as you connected the fine wires.

    Common Science Carleton W. Washburne
  • The knife switch L is fastened to the bottom of the case so that the handle will project through a slot in one side of the box.

  • Omitting the knife switch we have two three-way switches controlling the light.

  • If the knife switch blades are hard to move, look for cutting at the pivots.

British Dictionary definitions for knife switch

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
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