mad cow disease
Americannoun
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A degenerative neurologic disease of cattle, thought to be caused by infection-causing agents called prions, in which brain tissues deteriorate and take on a spongy appearance, resulting in abnormal behaviors and loss of muscle control. A variant form of Creutzfeldt-Jakob disease is transmitted to humans through the eating of infected cattle tissue.
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Also called bovine spongiform encephalopathy
Etymology
Origin of mad cow disease
1985–90
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
She says the outbreak of BSE, or mad cow disease, that affected beef in the 1990s was more worrying because it could affect humans.
From BBC ● Apr. 5, 2026
In the 1980s, concerns about bovine spongiform encephalopathy — or mad cow disease — took hold across Europe, when cases of the incurable and invariably fatal neurodegenerative disease of cattle began to appear.
From Los Angeles Times ● Apr. 18, 2024
China also recently ended a ban on Brazilian beef imposed in February after the discovery of an atypical case of mad cow disease.
From Washington Times ● Apr. 13, 2023
Thanks to that and other scares, such as the outbreak of "mad cow" disease on beef farms in the 1990s, the public perception of intensively farmed food shifted from safe to risky.
From Salon ● Mar. 14, 2023
Then people in England began dying of a sickness called mad cow disease.
From "The Omnivore's Dilemma" by Michael Pollan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.