Definition of gelignite noun from the Oxford Advanced Learner's Dictionary

 

gelignite

 noun
noun
BrE BrE//ˈdʒelɪɡnaɪt//
 
; NAmE NAmE//ˈdʒelɪɡnaɪt//
 
[uncountable]
 
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a powerful explosive Word Origin late 19th cent.: probably from gelatin + Latin (l)ignis ‘wood’ + -ite.
See the Oxford Advanced American Dictionary entry: gelignite