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viral

[ vahy-ruhl ]
/ ˈvaɪ rəl /
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adjective
of, relating to, or caused by a virus.
pertaining to or involving the spreading of information and opinions about a product or service from person to person, especially on the internet or in emails: a clever viral ad.See also viral marketing.
becoming very popular by circulating quickly from person to person, especially through the internet: the most memorable viral videos;This book is already viral two weeks before its official publication date.
pertaining to a computer virus.
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Idioms about viral

    go viral, to spread rapidly via the internet, email, or other media: Footage of the candidate's off-color remarks went viral within minutes.

Origin of viral

First recorded in 1935–40; vir(us) + -al1

OTHER WORDS FROM viral

an·ti·vi·ral, adjective

WORDS THAT MAY BE CONFUSED WITH viral

viral , virile
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use viral in a sentence

British Dictionary definitions for viral

viral
/ (ˈvaɪrəl) /

adjective
of, relating to, or caused by a virus
(of a video, image, story, etc) spread quickly and widely among internet users via social networking sites, e-mail, etc
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

Medical definitions for viral

viral
[ vīrəl ]

adj.
Of, relating to, or caused by a virus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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