an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host
病毒
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[as modifier]
a virus infection .病毒感染。
〈非正式〉 病毒感染;病毒病。
〈喻〉 有害影响,毒害
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the virus of cruelty that is latent in all human beings .潜伏在所有人身上的残忍性。
(亦作
(计算机)病毒。
" late Middle English (denoting the venom of a snake): from Latin, literally ‘slimy liquid, poison'. The earlier medical sense, superseded by the current use as a result of improved scientific understanding, was ‘a substance produced in the body as the result of disease, especially one that is capable of infecting others with the same disease’. "