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Meaning of “virus” - Learner’s Dictionary

virus

noun [C]     /ˈvaɪərəs/
ILLNESS
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.Bacteria, moulds, germs and virusesNot fit and healthyThin or slender (of people)
COMPUTER
B1 a program that is secretly put onto a computer in order to destroy the information that is stored on itComputer programming and software
(Definition of virus from the Cambridge Learner’s Dictionary © Cambridge University Press)
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