a temporary prevalence of a disease.
a rapid spread or increase in the occurrence of something: an epidemic of riots.
- ep·i·dem·i·cal·ly, adverb
- ep·i·de·mic·i·ty [ep-i-duh-mis-i-tee], /ˌɛp ɪ dəˈmɪs ɪ ti/, noun
- in·ter·ep·i·dem·ic, adjective
- pre·ep·i·dem·ic, noun, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use epidemic in a sentence
It principally affects the alluvial soil near the mouths of the great rivers, and more particularly the delta Epidemicity.
Dr. Kerr attributed this increase to exacerbation in the type, and epidemicity of the disease.Prisoners Their Own Warders | J. F. A. McNair
British Dictionary definitions for epidemic
(esp of a disease) attacking or affecting many persons simultaneously in a community or area
a widespread occurrence of a disease: an influenza epidemic
a rapid development, spread, or growth of something, esp something unpleasant: an epidemic of strikes
- epidemically, adverb
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
Scientific definitions for epidemic
An outbreak of a disease or illness that spreads rapidly among individuals in an area or population at the same time. See also endemic pandemic.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for epidemic
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.