Pathology Occurring suddenly, rapidly, and with great severity or intensity. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "fulminant" in a sentence
"In this condition, called fulminant hepatitis B, a liver transplant is the only treatment of merit."
"We also have the sadly familiar type described as the fulminant or, literally, "lightning-stroke" variety."
"That showed the death rate for patients with a type of infection called fulminant C.difficile colitis was 75 percent."