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sparking plug

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noun British.
  1. spark plug(def 1).
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Origin of sparking plug

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sparking plug

Historical Examples

  • I made sure that the oil was circulating, and cleaned the sparking-plug, but the trouble was not remedied.

    The Home of the Blizzard

    Douglas Mawson


British Dictionary definitions for sparking plug

sparking plug

noun
  1. a device screwed into the cylinder head of an internal-combustion engine to ignite the explosive mixture by means of an electric spark which jumps across a gap between a point earthed to the body of the plug and the tip of a central insulated rodAlso called: spark plug
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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