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lyddite

American  
[lid-ahyt] / ˈlɪd aɪt /

noun

Chemistry.
  1. a high explosive consisting chiefly of picric acid.


lyddite British  
/ ˈlɪdaɪt /

noun

  1. an explosive consisting chiefly of fused picric acid

  2. a dense black variety of chert, formerly used as a touchstone

"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

Etymology

Origin of lyddite

1885–90; named after Lydd, borough in SE England near the site where it was first tested; -ite 1