virus

名词 virus:

1. (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
2. a harmful or corrupting agency
3. a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer
   同义词：computer virus

1. At some point, determined by how the virus was programmed the virus attacks.
   只有在某个点上病毒程序才会发作(这是由病毒程序的设计所决定的)。
2. The direct cause, such as a bacterium or virus, of a communicable disease.
   传染原传染性疾病的直接病因，例如某种细菌或病毒
3. Scientists have isolated the virus causing the epidemic.
   科学家们已分离出引起这种流行病的病毒。
4. We should be watchful of computer viruses.
   我们应该警惕计算机病毒。

vi.rus

n.（名词）
【复数】 vi.rus.es

Any of various simple submicroscopic parasites of plants, animals, and bacteria that often cause disease and that consist essentially of a core of RNA or DNA surrounded by a protein coat. Unable to replicate without a host cell, viruses are typically not considered living organisms.
病毒：各种动物、植物和细菌的简单亚微观寄生虫之一，常引起疾病，主要由核糖核酸或脱氧核糖酸的一个核组成，周围有蛋白质包围。离开寄主细胞不能复制本身，病毒通常不被认作为是生物体
A disease caused by a virus.
病毒病：病毒引起的一种疾病
Something that poisons one`s soul or mind:
毒素，毒害：毒害某人灵魂或思想的事物：
例句：
the pernicious virus of racism.
种族主义的有害影响

Computer Science A computer virus.
【计算机科学】 计算机病毒

来源：
Latin vorus [poison]
拉丁语 vorus [毒药]