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virus (n.)

14世纪晚期,"有毒物质",来自拉丁文 virus "毒药,植物的汁液,粘稠的液体,有效的汁液",来自古意大利语 *weis-o-(s-) "毒药",这可能来自一个PIE根 *ueis-, ,也许最初的意思是"融化掉,流淌",用于指肮脏或恶臭的液体,但在一些语言中专门用于"毒液"(也是梵文 visam "毒液,毒药", visah "有毒"的来源。"阿维斯坦语 vish- "毒药;"拉丁语 viscum "粘性物质,鸟石灰;"。希腊语 ios "毒药", ixos "槲寄生,鸟石灰;"古教会斯拉夫语 višnja "樱桃";古爱尔兰语 fi "毒药";威尔士语 gwy "毒药")。)"引起传染病的病原体"的意思在1728年就有记载(指性病);现代科学使用可追溯到19世纪80年代。计算机意义是1972年的。

Origin and meaning of virus

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Definitions of virus from WordNet

virus (n.)
(virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein;
virus (n.)
a harmful or corrupting agency;
the virus of jealousy is latent in everyone
bigotry is a virus that must not be allowed to spread
virus (n.)
a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer;
a true virus cannot spread to another computer without human assistance
Synonyms: computer virus
From wordnet.princeton.edu