Definition of fulminate in English:


Pronunciation /ˈfo͝olməˌnāt/ /ˈfʊlməˌneɪt/

Translate fulminate into Spanish

intransitive verb

[no object]
  • 1Express vehement protest.

    ‘he fulminated against the evils of his time’
    • ‘she began fulminating at the injustice of it all’
    protest, rail, rage, rant, thunder, storm, declaim, inveigh, speak out, make a stand, take a stand
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  • 2literary Explode violently or flash like lightning.

    • ‘thunder fulminated around the house’
    explode, flash, crack, detonate, blow up, go off
    View synonyms


  • A salt or ester of fulminic acid.

    ‘In the short span of years between 1807 and 1820, metallic fulminates proved an efficient method for igniting powder charges and developed into the familiar and practical percussion cap.’
    • ‘It took the detonation from his mercury fulminate blasting cap to initiate the explosion.’


Late Middle English from Latin fulminat- ‘struck by lightning’, from fulmen, fulmin- ‘lightning’. The earliest sense (derived from medieval Latin fulminare) was ‘denounce formally’, later ‘issue formal censures’ (originally said of the Pope). A sense ‘emit thunder and lightning’, based on the original Latin meaning, arose in the early 17th century, and hence ‘explode violently’ (late 17th century).