ful·​mi·​nant ˈfu̇l-mə-nənt How to pronounce fulminant (audio)
: coming on suddenly and with great severity
fulminant disease

Examples of fulminant in a Sentence

Recent Examples on the Web Most cases are mild and readily treatable, but C. difficile has been known on rare occasions to cause severe fulminant colitis, toxic megacolon, and death.23 Warnings and Interactions Penicillins are generally considered safe during pregnancy and breastfeeding. Jenny Sweigard, Verywell Health, 16 Nov. 2023 Acute liver failure, also known as fulminant hepatic failure, is a rare but life-threatening condition in which the liver loses function. Sara Moniuszko, CBS News, 5 Sep. 2023 Vibrio, in particular, often causes fulminant infections with rapid shock and death. Judy Stone, Forbes, 4 Oct. 2022 The other possibility is a life-threatening fungal infection called acute fulminant fungal rhinosinusitis. Amy Marturana, SELF, 26 Dec. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fulminant.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1838, in the meaning defined above

Time Traveler
The first known use of fulminant was in 1838

Dictionary Entries Near fulminant

Cite this Entry

“Fulminant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fulminant. Accessed 23 Apr. 2024.

Medical Definition


ful·​mi·​nant ˈfu̇l-mə-nənt, ˈfəl- How to pronounce fulminant (audio)
: coming on suddenly with great severity
fulminant hepatitis with total hepatocyte necrosisC. L. Humberston et al.

More from Merriam-Webster on fulminant

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!