1 (medical) any of various types of germs that are a cause of disease: a flu virus.
az: virus
ru: вирус
2 (computing) a computer code that is inserted into a program to destroy information or cause errors: software that provides protection against computer viruses.
az: virus
ru: вирус
♦ adjective
He is suffering from a virus infection.
az: virus
ru: вирусный