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TOEFL IELTS BNC: 3589 COCA: 2701

virus

Word family
vi·rus /ˈvaɪərəs $ ˈvaɪrəs/ ●●○ W3 noun  
1 [countableC, uncountableU]HBM a very small living thing that causes infectious illnesses 病毒
 children infected with the Aids virus
感染艾滋病病毒的儿童
 a virus infection
病毒感染
2. [countableC]TD a set of instructions secretly put onto a computer or computer program, which can destroy information. When a computer that has a virus makes a connection with another computer, for example by email, the virus can make copies of itself and move to the other computer. 〔计算机〕病毒
3. [countableC] a program that sends a large number of annoying messages to many people’s mobile phones in an uncontrolled way 〔手机的〕短信病毒
nCOLLOCATIONS
ADJECTIVES/NOUN + virus
the AIDS/flu/polio etc virus
They are trying to stop the spread of the flu virus.
a deadly/killer virus
a killer virus which has already been responsible for the deaths of hundreds of people
virulent (=causing many people to become ill)
Why was this particular strain of the virus so virulent?
verbs
a virus causes something
The virus causes people to sweat.
carry a virus (=have a virus, which you may then give to other people)
A nurse at the clinic was found to be carrying the virus.
get a virus (also contract a virus formal)
He does not know when he contracted the virus.
be infected with a virus
Thousands of people may already be infected with the virus.
be exposed to a virus
Four workers at the facility, though exposed to the virus, never became ill.
transmit/pass on a virus (=pass it from one person or animal to another)
The rabies virus is transmitted in saliva when one animal bites another.
a virus spreads
The virus spread throughout the population.
phrases
a strain of a virus (=one type of it)
Doctors fear that a new strain of the virus will appear.
a virus infection
The fever was caused by a virus infection.
Examples from the Corpus
From Longman Business Dictionary
virusvi·rus /ˈvaɪərəsˈvaɪrəs/ noun [countableC]COMPUTING
a set of instructions secretly put onto a computer, that can destroy or change information on the computer
The virus had already destroyed data at several US companies.
compare bug
Origin virus
(1500-1600) Latin thick slippery liquid, poison, bad smell
vi·rus nounn COLLOCATIONS1
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