lyddite


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lyd·dite

 (lĭd′īt′)
n.
An explosive consisting chiefly of picric acid.

[After Lydd, a municipal borough of southeast England.]
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.

lyddite

(ˈlɪdaɪt)
n
1. (Elements & Compounds) an explosive consisting chiefly of fused picric acid
2. (Geological Science) a dense black variety of chert, formerly used as a touchstone
[C19: (sense 1) named after Lydd, a town in Kent near which the first tests were made]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lydd•ite

(ˈlɪd aɪt)

n.
a high explosive consisting chiefly of picric acid.
[1885–90; after Lydd, borough in SE England]
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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developed as a poison gas for war use") (68) and lyddit (Engl.: lyddite = "a high explosive composed chiefly of picric acid") (69) are military terms/weaponry which ceased to be synthesized due to their being replaced by more advanced chemical compounds.
This landscape has an obvious predominance of bluish grey and black schists with possible inter-bedded conglomerates (pudingas) and quartzite, lyddite and limestone lenses (Lesaka, Aranaz, Artikutza).