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touch paper

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noun
paper saturated with potassium nitrate to make it burn slowly, used for igniting explosives and fireworks.
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Origin of touch paper

First recorded in 1740–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use touch paper in a sentence

British Dictionary definitions for touch paper

touchpaper
/ (ˈtʌtʃˌpeɪpə) /

noun
paper soaked in saltpetre and used for firing gunpowder
light the touchpaper or light the blue touchpaper to do something that will cause much anger or excitement
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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