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n. Chiefly British
A spark plug.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Automotive Engineering) 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 rod. Also called: spark plug
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. a device that ignites the fuel mixture in a cylinder of an internal-combustion engine.
2. a person who leads, inspires, or animates.
spark′plug`, v.t. -plugged, -plug•ging.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||sparking plug - electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark|
electrical device - a device that produces or is powered by electricity
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