Meaning of “virus” - Learner’s Dictionary


noun [ C ] us uk /ˈvaɪərəs/
Extra Examples
The virus can be passed on through physical contact.The virus is spread by rats.Research has advanced our understanding of the virus.There is still a risk of transmission of the virus through infected water.Older people are more susceptible to the virus.

B2 an infectious organism too small to be seen that causes disease, or an illness that it causes:

The doctor says I've got a virus.

B1 a program that is secretly put onto a computer in order to destroy the information that is stored on it

(Definition of “virus” from the Cambridge Learner’s Dictionary © Cambridge University Press)