[ fuhl-muh-neyt ]
/ ˈfʌl məˌneɪt /

verb (used without object), ful·mi·nat·ed, ful·mi·nat·ing.

to explode with a loud noise; detonate.
to issue denunciations or the like (usually followed by against): The minister fulminated against legalized vice.

verb (used with object), ful·mi·nat·ed, ful·mi·nat·ing.

to cause to explode.
to issue or pronounce with vehement denunciation, condemnation, or the like.


one of a group of unstable, explosive compounds derived from fulminic acid, especially the mercury salt of fulminic acid, which is a powerful detonating agent.

Origin of fulminate

1375–1425; late Middle English fulminaten < Latin fulminātus (past participle of fulmināre) thundered, equivalent to fulmin- (stem of fulmen) thunderbolt, lightning + -ātus -ate1


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for fulminate

British Dictionary definitions for fulminate

/ (ˈfʌlmɪˌneɪt, ˈfʊl-) /


(intr often foll by against) to make criticisms or denunciations; rail
to explode with noise and violence
(intr) archaic to thunder and lighten


any salt or ester of fulminic acid, esp the mercury salt, which is used as a detonator

Derived forms of fulminate

fulmination, nounfulminator, nounfulminatory, adjective

Word Origin for fulminate

C15: from Medieval Latin fulmināre; see fulminant
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