virus Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "virus" - English Dictionary

See all translations

virusnoun [C]

uk   /ˈvaɪə.rəs/  us   /ˈvaɪ-/

virus noun [C] (DISEASE)

B2 an extremely small piece of organic material that causes disease in humans, animals, and plants: a chickenpox/flu/herpes/mumps virus Evidence suggested that the AIDS virus was spreading very quickly among the heterosexual community.B2 a disease caused by a virus: I don't know exactly what's wrong with her - I think it's some sort of virus.
More examples

virus noun [C] (COMPUTER PROBLEM)

B1 a computer program or part of a computer program that can make copies of itself and is intended to prevent the computer from working normally
More examples
(Definition of virus from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of virus?
Add Cambridge dictionaries to your browser to your website

Definitions of “virus” in other dictionaries

Word of the Day
stretch the truth

to say something that is not completely honest in order to make someone or something seem better than it really is

Word of the Day

July 4th, Bastille Day, and the language of revolution.
July 4th, Bastille Day, and the language of revolution.
by Liz Walter,
July 01, 2015
With the USA’s Independence Day on the 4th and France’s Bastille Day on the 14th, July certainly has a revolutionary theme, so this blog looks at words and phrases we use to talk about the dramatic and nation-changing events that these days celebrate. In particular, it focuses on one of the most

Read More 

generation pause noun
generation pause noun
July 06, 2015
informal young adults who are not able to do things previously typical for their age group such as buy a home or start a family because of lack of money Meanwhile, a new study released last week revealed a quarter of Brits believe they’ll never own a property, leading them to be

Read More